Has anyone heard anything from Marantz about firmware upgrades for the 8200? Would like to see Circle surround 2 like they have on the new 7300 as well as some potential fixes for minor idiosyncrasies of the SR8200. My personal wish list would include: 1) Fix delay in digital signal pickup 2) Ability to adjust channel levels without internal test tones (using AVIA, etc.) 3) Volume OSD over component input (not just menu) 4) Ability to have different channel level settings for each surround mode and input (like H/K) 5) Circle Surround 2 I'm not sure if all/any of these are addressable in firmware. Anyone else have insight into this or other recommendations? Don't get me wrong, the 8200 is a fantastic product as it exists today, but we can always hope for improvement. They had to have put that RS232 port on for a reason, right?