You've limited your selection drastically when you ask it to be your 2 channel preamp, too. However, if you get a Blu-Ray player that decodes all the new HBR (high bit rate codecs like TrueHD and DTS HD MA) you can increase that selection pool.
The latest HDMI 1.3 based processors (Onkyo, Integra, Marantz, much more expensive Denon) have all of their monies going to HDMI switching, HBR decoding, and digital room correction. There was not much left to put into 2 channel analog stages, and it shows/sounds appropriately. OTOH, the processors that are known to hold their own with 2 channel currently have no HDMI switching, and most aren't able to handle 24/192 lossless pcm coming in.....but I'd investigate them:
Bryston SP2 (in reality, a processor with a nice Bryston BP26 stereo preamp included)
Proceed AVP2
Bel Canto PrePro
My recommendation: get a nice stereo preamp with HT bypass and then buy an Onkyo Pro 885 or Integra 9.8 HDMI 1.3 processor. A used Modwirght SWl 9.0 and an 885 will cost you $2500 and you'll be blown away. Or go something like the Bryston and then get a separate video (HDMI, etc.) switcher. You may still have an issue with sending lossless PCM though.