I have been looking for a receiver to both take the place of a media box and provide high quality surround sound, for the panasonic industrial plasma monitor, and so far the Yamaha RXV-1600 and RXV-2600 seem to offer the most bang for the buck.
Both have two HDMI inputs and one HDMI out.
I have found very few receivers below 1500 USD retail that have two HDMI inputs and full analog to HDMI conversion, but I am still looking.
Both receivers convert analog input to HDMI and Component output, however you must choose one output or the other.
Both are THX sellect2 certified.
Both deinterlace 480i up to 480p.
Both come with automated speaker calibration using a mic.
The bigest difference that I can see is that the RXV-2600 upscales 480i to 1080i or 720p, while the RXV-1600 does not. For a monitor this is a nice feature, but if your TV does this already you could save a few hundred dollars.
Please note, however, that I am a shopper not a pro. You may be able to find something less expensive that will better suit your specific needs.