CD Universe Compliment - Good Alternative - CDs, DVDs
I've used CD Universe for a while now as an alternative to Amazon. They sometimes have better prices. I was particularly impressed recently when I ordered a CD that was listed as available on 12-28-09. It was on my doorstep on Christmas Eve. I guess this is a sub-compliment to UPS, too, for getting it there before Christmas, even though this wasn't a gift or anything.
CD Universe always has a great selection and good prices. I would recommend checking them out to make sure you are getting the best price, or if you hate Amazon (I don't, but I've seen enough people on this site that do).