First, as for the TV, I suggest DLP. HD-iLA is just JVC's brand name for their LCoS technology, its the same as Sony's "SXRD". I highly recommend DLP over LCoS. Not only do DLP sets generally look better, but there's a much bigger chance of getting a set that doesnt work right if you get an LCoS TV. The failure rate for LCoS TVs is significantly higher than LCD or DLP. Toshiba tried making a set a few years ago, and abandoned it when they couldnt get enough to actually work. Hitachi originally planned to introduce a full line of 1080p LCoS TVs this year, but those plans were scrapped when they too couldnt get their TVs to actually function correctly.
As for individual models, check out Toshiba's 60 and 70 inch sets. They are significantly less expensive ($1000 or more) than a comparable Samsung, and I think both their cabinets and the actual picture quality are better than Samsung.
I'm not a fan of either HK or Yamaha. From what I've read, the RX-Z9's high-res upconversion makes the picture look much worse than it otherwise would have at standard res.
Toshiba's DLP sets have two HDMI inputs (at least the HMX series does, not sure about the HM) so you can probably get by without HDMI switching on the receiver. If you're willing to go without, you can probably get a good deal on a Pioneer Elite 59TXi, which in my opinion blows the RX-Z9 out of the water.
If you've absolutely gotta have it, I suggest the Denon 3806 or 4306, or a Marantz SR-8500. Technically it has DVI switching, but HDMI > DVI cables are easy to come by.