If steampunk is a bit too antique for your style, you might like this retro all-in-one PC instead. Dschrubbe made this very cool PC that houses a flat screen monitor inside of the portable TV.
It was originally a 1957 Setchell-Carlson P-62 portable television. Although the mouse and wireless keyboard don't quite blend in with the style of the TV, he hopes to modify them soon.
Although he doesn't have the cool instructional details on something like Instructables. I'm sure those that are good with mods will at least get a couple of new ideas from this mod.