IMO, local used equipment can be the best bang for buck, as people get rid of their 5 channel equipment and move into 6/7.1.
As far as new, I think the usual A/V reciever('cause you want a tuna) suspects to look at would be gear from Yamaha(RXV), Denon, Harmon Kardon(HK), Onkyo(Integra), Sony(ES line) and Pioneer. You'll want something with onboard *DTS and Dolby Digital* capabilities.
Combo CD/DVD players from any of the above, plus Panasonic, Toshiba, Hitachi, Philips, Samsung and JVC. This may be worth some time investigating if you're planning on an HDTV, as you'll want compatible video output jacks on this player to go to the TV. I believe *HDMI* to be the best current trend, but chances are slim to find used gear with this option.
Lots of used gear shows up here, and I would put trust in a transaction with *most* other forum members that have been with us for a while.
I suppose the best way to go about this, would be to get out and audition some of this stuff, do some after hours research on the net and produce a short list to make a final descision. You may want to get more specific and post any more related questions in the Home Theater section of this forum.
I don't know how dedicated you'll want to get, but other forums you may want to query could include the Audio Asylum and AVS.