My current fave mp3 site is Epitonic. It doesn’t have the wide choice that illicit sites do, but some really nice gems amongst the manure. Or something. Case in point: Antibalas, makers of rather sublime afro-tinged samba, er, stuff. I’d never heard of them until I discovered them on Epitonic, but I’m more inclined to buy their music now. Small problem – there’s diddly squat in the music purchasing budget ;(