am am looking at an alienware area-51 7500 esktop pc and not sure what to go with
here are the tech specs:

high-performance liquid cooling
acoustic dampening
768mb nvidia geforce 8800 ultra
intel cor 2 deo e6850 3.0GHz 4mb cache 1333mhz fsb
2gb DDR2 performance SDRAM at 800 mhz - 2 * 1024mb
approved nvidia nforce 680i sli motherboard
windows vista: home pemium
250gb serial ta 3gb/s 7,200 rpm w/ 16mb cache
20x dual-layer dvdrw
20" samsung 1680 x 1050 syncmaster widescreen flat panel

worth £1,491

or

sony vaio fz series laptop

Intel Core 2 Duo Processor T7800 (2.6GHz)
2 GB DDR-SDRAM (DDR2-667, 1 GBx2)
160GB Hybrid Hard Disk Drive
SuperMulti DVD±R DL / DVD±RW / DVD-RAM Drive
LCD 15.4" WXGA (XBRITE-HiColor™)
NVIDIA® GeForce® 8400M GT
Microsoft Windows Vista Ultimate
WLAN 802.11 a/b/g/n w/Integrated Bluetooth®
Sony VAIO® AC Adapter

is it worth £1,096.68

what one is better
thankz