[LSU Jonno]

Junno, you would be lucky to find it for $99, but even with that it is not a complete solution. When you assign keys, don't you still have to change input?
I think my solution is going to be just setting WMC for recording, and watching everything from XBMC, if I really need to watch something on TV, I will just either watch it on WMC or try to just use guide to remind me and then use strm files to watch it on XBMC.

I always felt more comfortable being able to just remap buttons instead of relying on preprogrammed functionality that's locked in by manufacturer. I have to admit I did not try Harmony One, though.

Not sure what you mean by changing inputs. I have WMC and XBMC as separate "activities" on my harmony one. When I hit the XBMC activity from within WMC my remote sends a command and an autohotkey shuts down WMC and launches XBMC. To switch back, I used advance launcher within XBMC to launch an autohotkey that kills XBMC then launches WMC. All of my buttons are independently configurable within each activity on my remote.