I see it's been a while since you posted this. I have started to look around for options for my setup, and came across the m-100. It looks like a good option, though I am inclined to go with XP not Win2K, using a 40GB HD and 1/2 a gig of RAM, controlled by a USB touchscreen backed up by a wireless mini-keyboard with integrated mouse. Audio will play through my existing JVC H/U.
I was curious if you pursued the M-100, and any feedback you might be able to offer up.