Hey, I'm giving the latest Media Center a go... used MJ for over a year, personally MC is overkill for what I use it for but its quite efficient with resources, was surprised. I notice little difference between Jukebox and Center however its slightly irrelevant now that I'm running a Q9400 and 4gb ram, but I still like to keep the system running as fast as possible. Also trying it out for my video playback, possibly the media server for my PS3, and with my TV Tuner Card although I haven't got an antenna near in my current residence.
But I have noticed a couple of things...
For some reason in the Panes view in Audio, the 'Large Thumbnail' column is not working. It might just be my install, I will re-install it if nobody else is having the issue and no bug can be found.
Also I was wondering if the ability to change the background on the cover art display was out of the question, I'd like to make mine a different colour, possibly the same as the tree area, the white really stands out like a sore thumb with No.4 theme.
In the System Information my processor is coming up as 'Intel Pentium III 2648 MHz MMX' probably means nothing, but as stated earlier its a Q9400.