Nad 515bee
I've got a bunch of older CDPs - Sony, Carver (with my SX-1250), Pioneer (w/G-22000), Denon, Kyocera, Technics - many of them with upgraded opamps. But I just went out and bought a new NAD 515BEE and am very happy with it - I'm using it with my SX-D7000.
Several places sell these for $300 shipped though I got mine locally.
My thoughts were originally that I'd use an external DAC with an older CDP but then I decided that a new CDP would track better then an old unit.
I also considered (and bid on) the HK DVD 48 but kept getting outbid. I think the days of the $60 HKs is gone now that the word is out.
Overall I'd highly recommend the NAD, tracks well, is compatable with homebrew discs and sounds great.