Mavromatic points out this lovely Windows Media Center PC from Italian company OnCinema. The TEATRO D1 has a built-in VGA touchscreen (with 1,280 by 720 pixel resolution!), DL-DVD burner, and a 500GB hard drive. On top of all that, it has all the usual input and output bits, including integrated Wi-Fi.
TEATRO D1 - The Super Media Center 2005 PC [Mavromatic]