Good chiptune music?

I highly enjoyed the music in VVVVVV, a retro-style platformer. If you liked it too, you can get the soundtrack for a $4 donation here.

Anyways, is there any other high quality chiptune music out there that would be roughly on par or better than the VVVVVV soundtrack?

she - pioneer/chiptune superstar

As for actual game music, the Earthbound soundtrack is incredible for being 16 bit.