This is one solid Business ultraportable. It is definately not your regular notebook in terms of build quality and finishing. The chassis is made of magnesium alloy for strenght and lightness, and the LCD housing is reinforced. This is not a "plastic" consumer laptop.
Online (user) reviews here
With Single core
http://www.notebookreview.com/default.asp?newsID=3101
With Dual Core and Vista
http://www.notebookreview.com/default.asp?newsID=3465
Specification;
Intel U2500 Dual Core Ultra low voltage 1.2Ghz
60GB 1.8" 4200rpm HDD
1Gb DDR2 Ram(2x512)
12.1" Widescreen
6 cell LiON battery
WIFI 802.11b/g
Built in SDHC card reader
1.4kg weight
Original Windows XP Pro License
Media Base docking station w/ 8x DVD/RW
Will throw in new original Dell Laptop bag.
Comes with all original Windows CD and Driver installation discs.
As of 05 Feb 2009, there is 402 days of Dell Factory Next business day On-site warranty.
Price $1550 (price when new $6500 - the docking bay itself is $550)
Reason for sale. Upgraded to a Dell Latitude XT Tablet :)

