WFMU's starting a Free Music Archive, with freely downloadable mp3s from all kinds of bands. There's a beta site up now, which you can poke around in, but also, they're having a concert at Bell House in early April to raise money for the project. The Oh Sees, Excepter, Catatonic Youth and Pink Skull are playing, and guess what, there are free mp3s from all four bands on the site.
My favorite, though is "Control My Gun" from Catatonic Youth.
Here's Catatonic Youth covering the best Stooges song in the world.
I don't know a thing about Catatonic Youth otherwise...anyone?