Nice one mate
I've just got a new Widescreen TV so I shall be rejigging the whole Xbox again. I need to get myself a new wireless bridge so I can easily ftp/stream stuff from the computer downstairs first though.
These should come in handy!
I see you used the same Amiga picture as I did for my PM3 skin for WinUAEX
EDIT: It's just a pity that the emulators can't be implemented 'within' xbmc so that when you exit a game you return to the menu, just like whdload does. I know there is Retro-X but it's so limited due to it being implemented as a python script.