For around $450,- these guys have documented how they made their own microsoft surface thing. They used open source tools for the applications, and got it looking very slick. It took them about two weeks to do, so with instructions, you should be able to make it more quickly.
Maximum PC’s Multitouch Surface Computer from Maximum PC on Vimeo.
Build Your Own Multitouch Surface Computer | Maximum PC
Robin
razor@edgarbv.com
https://www.edgarbv.com