These days I'm buying the majority of my tunes from eMusic (mp3 format, no DRM!), but I'm not a huge fan of their pricing model - my main problem with it is that unused downloads don't carry over to the next month.
My solution is to use their least expensive subscription - $9.99 per month - then buy Booster Packs as needed, which do carry over month-to-month.
For more about why eMusic rocks, check out this Wired article.
2 days ago