used phillips 963sa about $250 has sacd and upsampling also. also used denon 2910.
Toshiba SD-9200, a few years old, was top of the line, solidly built, and well regarded for audio as well, but on the higher end of your budget; Denon 2800 Mk II or 2200. Also newer LG and samsung models are worth taking a look at. They also have DVI-D, so you can compare with your HD receiver to see which looks better through DVI. LG 3510A also has OTA HD tuner built in so you can get DVD and HDTV through single DVI out. Good luck.
Check out the Samsung DVD-HD841. Has DVI and will play SACD and DVD Audio if you want to try it out. Was looking for a cheap one for bedroom and picked it up from Big Box (best buy) for less than $200.00. Picture is great with component out and it sounds good too. It's now in the living room. Asked Reference Audio Mods if they would consider checking it out and modding similar to the work they do on the Toshiba SD-3960.