Almost too many to list thanks to Spotify. Their Browse/Discover feature is very helpful in this regard. Also, not to hijack this thread started in 2004, but readers of this thread might also be interested in visiting "What's In Your CDP Tonight - The Minority Report". While not totally about obscure/new...a fair amount of what's there is. Here are 5 new-to-me artists that I've been enjoying:
The Lord Dog Bird - first (red) album
All Tiny Creatures - Harbors
mewithoutYou - several, but esp. Catch For Us The Foxes & Pale Horses
Bibio - Vignetting the Compost (& various others too)
Damian Jurado - for me mainly his Richard Swift-produced trilogy: Saint Bartlett, Maraqopa, & Bros. & Sisters of the Eternal Son
I could go on ad nauseum, but won't.