Dell's secrets have gone up in smoke as Engadget picks up a leak on the Dell XPS 420. The line has Core 2 Duo, Extreme or Quad processors, a 3x2-inch LCD display that runs Vista Sideshow , a dedicated Dell Xcelerator video transcoder, SATA II, Gigabit Ethernet, 8 external USB ports, two Firewire ports, and an eSATA port. No word on price, but this sounds like it's going to be quite costly. [Engadget]