Just got Trash Candy and The New Regime's Coup full albums from Amiestreet.com for less than $5!
If you guys are a fan of the Rock Band Network you should really browse the site.
You can find a crapton of awesome music for pennies.
Disclaimer - I'm not a part of Aime street, just wanted to share this with you guys as I've spent the better part of the afternoon trying to find ways to purchase the RBN tracks. Thought I'd mention the site to make it easier for the rest of you looking for RBN artists' MP3s.