To BB's credit, they did have a much lower price on "Enemy of the State" BD than Futureshop. I initially paid $40.99 for the movie and then noticed the next day that BB finally listed it on their site for $29.99. Later that day I stood in line for 1.5hrs to get the movie price matched at FS.
I bought myself 6 BD and 6 HD DVDs. The last day for the promotion is tomorrow. There were a couple of times when the price in their computers did not match the price listed on their website and one time when I later returned to have a disc price matched against Best Buy's online price.
The Sony 46" XBR2 LCD is right at the top of your price range. It works perfectly with a PS3, obviously, and had 3 HDMI inputs. Do you have the SA 3250HD box or the HD PVR, the 8300 or something like that, because the 3250 only has a DVI connector. Although admittedly, I have my 3250 connected...
The 360 uses IR. I can control it through my (first generation) Philips Pronto which is IR only. The controllers may use RF. The IR window on the 360 is rather small, point the universal remote directly at the IR window and see if that helps.