It's pretty rare to see a full BYO appear on the Internets, but here you go: a working MCE 2005 Media Center in all its rackmounted glory. Very cool external display, dual DVD burners for copying "personal movies" and all kinds of sweet images of the guts of a pretty powerful machine.
I haven't seen MCE for a little while and I'm hoping it's a little healthier than it was when I looked at it about 6 months ago. I love the idea of MCE, very clean and nice, but I don't like the Microsoft heavy-duty DRM taint. Oh well. It's still a nice looking PC.