Tons of cover songs if you look on the right side of the page
None of those are Meg and Dia. They're either youtube videos Dia made to drum up publicity when she was on the voice or ones Meg did herself during that period. Still some cool stuff though.
Gonna grab Here, Here and Here and whatever people recommend.
All three full-lengths are worth having, as is It's Always Stormy and the B-sides EP (Be Careful). Outside of that, "Halloween" is the only thing I'd recommend to anyone outside of hardcore fans.
Wait when did they get the rights to Here, Here and Here? I remember that it was released on Warner back in '08 because I looked up the band after hearing them in Hollister.