I've found yet another fantastic place to buy good, affordable art on the web. Tiny Showcase.
The idea behind Tiny Showcase is fairly simple - to 'Offer up a tiny limited-run print each week for art enthusiasts to "take home...for around the same price as a CD, book or record..."'
Each week Tiny Showcase release a limited edition print that has become so popular they've been known to not only sell out, but sell out within the hour.
This week's print, "Send Joan of Ark Over", by Rachel Sumpter, is this week's cool print.
You can read more about Tiny Showcase here.
20x200 is a similar type of project, where each week they release one photo and one print, and sell a limited edition of 200 of each for $20.