There are plenty more, but I've been to quite a few places not covered in my filming adventures.
Upstate (Albany area mostly) NY
Northern Lights - Clifton Park
Medium, ~1000. A flat floor w/ medium height stage. Poor lighting, very dark and a shitty PA. Only a flat floor area, with a very small raised platform at the left side of the floor. Lot's of security who look for and kick out people who are "too violent" in the pit. No stage vives. Some good acts here, Cannibal Corpse, Hatebreed, Suffocation, etc
Valentines - Albany
Shithole, ~200. Rectangular shaped room w/ extremely low stage, poor lighting. PA was OK the one time I went. Good drink prices. Not much security, I think dives were allowed, and security let the mosh flow. Mostly smaller acts here. Only medium act I've seen was Agnostic Front.
Bogie's - Albany
Another dumpy venue, but they get some good small-medium acts, mostly hardcore and metal. Actually seeing Biohazard there tommorrow. Low stage, shitty lighting, OK sound. Long, narrow room, which can get packed rather quickly. Website says ~400 capacity, but probably only ~150 will fit in the stage area. Not much security, and they're chill dudes. Other acts include Agnostic Front, Terror, Malevolent Creation, etc.
Uticia Memorial Auditorium - Utica
Typical college hockey arena. Decent place for a show, but PA isn't the best. Lighting is good on stage, and there GA setup is pretty successful. Average amount of security. Some fairly big acts. I've seen Korn and Disturbed there. Not many shows here, though. Beer expensive. Like $8 each.
The Chance - Poughleepsie
Small theatre, ~800 capacity. I actually really like this venue, but security sucks. I got busted filming cause they tried to find out who was fighting in the mosh pit. The pit area is sunken in slightly, and the stage is good height, so there's not a bad seat in the house. Balcony as well, but apparently they only open it up when they're close to sold out. Good lighting and good sound, but security brings the rating down. Good small-medium acts. Biohazard, Soilwork, Dying Fetus, but mostly lesser known bands.
Washington Ave Armory - Albany
Basketball arena, probably around ~2500. Ok place to see a show, but I've only been there once. Not great for filming, as it's crawling w/ security, but they seem to let the mosh flow as it may. Lighting is kinda dark, but PA is decent.
Times Union Center - Albany
Typical hockey arena, 15k capacity. Saw Metallica here. Solid arena, good sound and great lighting and not much security. Suprised to see Metallica here, as they don't seem to book a lot of big bands here. Theory of A Deadman, Staind, etc have played there recently.
Glens Falls Civic Center - Glens Falls
Very similar to Utica Auditorium, just bigger. Good venue, goog lighting and PA. Quite a bit of security, got busted filming and had to switch seats and start again.
A great little metal venue. May seem a little off putting at first, but the 1st floor bar is great, bar on the concert level (2nd floor) is stocked well, and the prices are good. It's smal, ~400 capacity, but it's a great place to see a show at. Stage has great height, lighting is great, and the PA is phenomenal. Better than nearly every place I've been to. Dives are allowed, and security is very chill. And right in the heart of DT Montreal. Good small-medium acts. Deicide, AF, Napalm Death, etc.
Decent small theatre. ~1000 capacity. Large floor area, raised in the back. Balcony that surrounds the stage is opened up when enough tix are sold. Lighting is good, PA is average. Security is very chill and there isn't much. All kinds of artists here, Method Man, Cannibal Corpse, lot's of good medium acts. Dives allowed.
Another small theatre, similar to Club Soda, just a bit smaller. Same deal w/ balcony. Floor is flat, very slightly raised towards the back, but the stage is good height. Lighting varies from great to OK, PA is average. Drinks on the expensive side. Mostly small and medium acts, Job For A Cowboy, some metal tours, etc.
Medium sized theatre, ~2000 capacity. Very large floor area, with a small platform in the back. Balcony opened, but the don't let you watch from the "windows", as the balcony is standing room, with windows to watch through. Eh, maybe they will if it's busy enough. Only been to 1 show there, so I can't be sure. PA was solid, but stage was dark. Not a lot of shows here. Dives not allowed, but not much security. Medium acts, Summer Slaughter 2011
Very intimate venue, upstairs from a skateboard place. ~300 capacity. Dives allowed, and I have never seen a security guard. Lighting is OK, and has a decent PA. No barricade, so you can get right up to the stage. Sucks to watch from the back, as the stage is so low. Can get brutally hot in here, too. Mostly small hardcore acts. Recently though, they've gotten Terror, Trapped Under Ice, Wisdom In Chains, so some good drawing hardcore acts.
Very cool and underrated venue. ~800. Medium size floor, with a nice horseshoe shaped balcony. Great lighting and PA, and nice high stage. Drinks are priced well to. I wish more shows came here. Medium acts. Deicide, Enslaved, etc.
Same building as Cafe Campus. OK intimate venue, probably ~300. Small reaised area in the back w/ chaors and tables, and a bar to the left of the stage. MEdium height stage, OK lighting and sound. Small acts.
Typical hockey arena. Solid venue. Drink prices drop the rating a bit.
~1200 capacity. Haven't been in a while, but I remember the lighting and sound being pretty good. Medium sized floor, with a multiple level balcony, but each level is quite small. Lot's of security, a molestation-style frisk on the way in.
(that haven't been covered)
TD Banknorth Garden - Boston
Typical hockey arena. Lot's of security, and metal detectors on way in.
Prudential Center - Newark, NJ
Bojangle's Colliseum - Charlotte, NC
Much like the Glens Falls and Utica arenas. Good place for a show, very little security. Saw Slipknot here.
Toyota Pavillion @ Montage Mountain - Scranton, PA
Outdoor ampitheatre. Somewhat similar to Comcast Center in Mansfield/Boston. Saw Mayhem Fest here in '09. 2 side stages are set up in a huge lot, on opposite sides. A bit of a walk to reach the main stage. Stage is typical ampitheatre. Only real drawback here, is it is a long ass walk from the parking lot into the theatre. Did not see any shuttles, and taxi's will only bring you into the parking lot, not to the entrance. Still for whatever reason, I dug this place.
Daniel St. Club - Milford, CT
Typical small bar type venue. Low stage, low light, but it has a pretty good PA. Drinks are suprisingly expensive. Only saw 1 security guard, but I don't think diving is allowed. This place get's all types of music, from country to rap to death metal. Saw Malevolent Creation and Full Blown Chaos here.
Sovereign Center - Reading, PA
Good sized arena, ~8000 capacity. Very good sound and lighting, as well as good drink prices. Average amount of security for a venue like this, but they seemed pretty lax. Doesn't seem to get a lot of shows, which is a shame. Saw Slayer here over the summer. Really liked this place.
The Beachcomber - Wellfleet, MA
Very cool and unique ocean front bar in Cape Cod. Right on the beach, which is very cool. Stage is small and low, but had good lighting and a solid PA. Place seems to get lots of smaller acts of all different types of music. OK drink prices. No security. Saw J Mascis of Dinosaur Jr here while on vacation over the summer.
The Fillmore - San Francisco, CA
It's world reknown for a reason. Amazing lighting, great old school style theatre, ~900 capacity. Medium size floor area, with a nice high stage. Great PA as well. Has a small balcony that was VIP @ Metallica's 30 Year Anniversary shows. Lot's of medium acts here lately. Lot's of security, though.
To get a rough idea of some of these venues, check my YouTube channel for vids. http://www.youtube.com/user/hellawaits77ny
Also, if you have any questions about parking, areas of the city/town, shoot me a PM. Don't feel like writing all that stuff out right now.