I think io is asking for a recommendation of quality of sound, not quantity of low prices. There are many $300 and up mini stereos that sound like @#$%. NewEgg and the other discount sellers will hype these just as much as the ones that sound decent.
The thing to do is to take CD's that you are very familiar with, go to stores and listen to as many units as you can. Start building a list of those that are good and bad. You can't judge solely on the suggested retail price, brand name, size or feature count. Only by ear.
<story>I went with a JVC unit for the bedroom, from Radio Shack of all places. We had walked in to buy our final choice (which was a Sony if I remember) and the salesman said "Don't buy this one -- it's a good unit but the JVC one I have at home is better, and is on clearance on the online store for $100 less than the Sony with free shipping" Well, that certainly surprised us, so we went home and ordered it online and it's great. </story>