On at least one topic (others too, no doubt), I'm full of shit! The topic is the "best source of legal downloads". Earlier I enthused that it was "E Music", hands down. A month later I did as I always do...dropped my E-Music account, and moved on...this time to Yahoo Music Unlimited. They simply offered more of the artists I was interested in, and were a great fit for my Sandisk Sansa E250 and Archos GMini402 players.
Besides...with a little bit of software, ANY of these formats can be easily converted to unencrypted mp3. Not that I'd know from personal experience. Breaking DRM is against the Digital Millennium Copyright Act, and a crime. Even if I paid for the content! What a great law! God bless the (recently departed) republican congress! ;)