[citation][nom]tayb[/nom]Not a bad deal really for an all in one.[/citation]
Not bad, but not good. a Mac Mini and a cheap 19" monitor can be had for about $700 ($740 with a RAM upgrade), and that comes with a decent processor (a bit slower, but at least it has VT), a much better GPU, better expandability, faster RAM, and higher resolution, and it runs OS X and Windows.
Step up $500, and you get a 3GHz iMac, 21.5 vs 18.5", better resolution, better GPU, Better WiFi, bluetooth, much greater expandability, wireless components (kbd/mouse), better speakers, lower power draw, cheaper extended warranty, a free copy of Parallels 5, and more. A Dell with an intel GMA GPU might last a year or two before it's completely useless on the modern Internet, and from day 1 it can't do HD video and can't support dual displays, where an iMac should last 3-5 years easy, and resell later for 1/3rd its value or more. At least on the Mini or an iMac you can play WoW...