I have been listing and selling some music at discogs.com for a while now.
I digitize my albums with a Griffin iMic into my Macbook Pro, using Audacity.
Anyway, here's my shop link for anyone looking for some deals on vinyl (and a handful of CDs)
http://www.discogs.com/seller/davedecay
I do add new stock regularly, and popular items do move. I try to underprice other sellers unless my item is in better shape or has something special that theirs does not.
Thanks for your time.