Man, this is awesome.
If your band has MP3s for sale, I really, really, really heartily recommend SnoCap.
You give them your tunes, they create a host store that you can have on any web site. You set pricing, availability and all that. People can preview each tune and all that, on THEIR bandwidth. Cost: $30 per year. Easily made back if your band has any sort of following.
I tried actually putting the storefront here in the forum, but the forum software blocks HTML that makes outside include calls.
It's the top doohickey on our page here:http://www.toohipfortheroom.com/mp3.htm
I strongly recommend it to anyone with MP3s to sell.