Check out the Sony DVP-NC555ES. You should be able to find one new for <$400. Used for less than that. I have 2 of them and they've replaced a Sony 7700, and Denon DVP2200. The fact it's a 5 disc changer is a big bonus for me - though it's a larger footprint than you may be looking for. It's far better on redbook than anything else I've tried in the price range. Oh, and it's a multi-channel SACD player too.
Below is a description of them from SACDMods.com
http://www.sacdmods.com/NC555ES.htm
Below is a description of them from SACDMods.com
http://www.sacdmods.com/NC555ES.htm