http://anthologyrecordings.com/I've bought a few albums off of this site now, and I have to say that it runs really smoothly. I found quite a bit of interest in their library (particularly the Attileo Mineo album) and I can't wait to see the site continue to expand. Definitely worth a look. (Oh, I enjoy the Thai Beat compilation I downloaded as well)
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http://amiestreet.com/The selection here is considerably broad. The pricing system is fantastic, and if you pay ahead you get free credits, a nice bonus. One of the best values I've seen is you can get Neu's albums for under $5. Also, Tadd Mullinix's "Winking Makes a Face" is $1.50 (this is possibly one of my all-time favorite albums).
The negative? I don't know if it is just because I am using firefox, but the site is sometimes slightly wonky. Once in a while purchasing a song hung up a bit longer than it should have, but in all cases I was able to download the track. Also, the nice thing? It keeps track of everything you've purchased and allows you to redownload it for no additional cost (at least this is the way it seemed to me when I redownloaded a track I accidentally deleted).
Overall, pretty kick ass. The infastructure needs slight work, but I actually found a LOT of stuff on here. Not only that, but I found a lot of small artists that I hadn't heard of that I actually ENJOY. That is rare. Give it a shot. If nothing else you can sample the hell out of music prior to buying it and that can make for a fun afternoon.