Are you an eMusic subscriber yet? You should be. It's cheap -- less than $.25 a track for DRM-free, high bitrate music -- and eMusic has a great selection of music, including some you won't find on iTunes.
Not sure? Sign up for a trial membership by clicking on one of the links below. You'll get 50 downloads for free. Here are some albums worth downloading now.
Arcade Fire - Neon Bible
Spoon - Ga Ga Ga Ga Ga
Blonde Redhead - 23
El-P - I'll Sleep When You're Dead
The Octopus Project - Hello Avalanche
The New Pornographers - Challengers
World Party - Best in Show