Do, seriously check this out, it's the Indie Game Music Bundle. Pay $1 or more and get 10 albums. Pay $10 or more and you get 7 more bonus albums. Only today though, so quickly quickly! There's some really awesome soundtracks there. No Bastion though, which made me a little sad, but it's still quite a bang for buck!
I already own two of the soundtracks, but I couldn't resist. I'm still a dirty dirty pirate, I just want to at the very least, try to support a concept that I very much approve of, which is to make it easier and more gratifying to buy something than it would be to download it illegally.