Dell has introduced the 18.5" Studio One 19 All-in-One PC, with prices starting at just $699. For that price you get a 18.5" display with 1366 x 768 pixel resolution, Intel Pentium Dual Core E5200 2.5GHz processor, 2GB DDR2 800MHz memory, 320GB HDD, NVIDIA GeForce 9200 integrated graphics, a slot-loading DVD burner, integrated webcam and Windows Vista Home Basic.
The cheapest version doesn't have a multi-touch screen, for that feature you'll have to pay $100 extra. The more beefier versions of the Dell Studio One 19 feature the Intel Core 2 Q8200, 4GB DDR2, GeForce 9400 integrated graphics and up to 750GB HDD.
You can preorder the Studio One 19 today but the systems won't ship until May 20th.