I just priced up an alienware with same specs apart from the graphics card is a 580m instead of the 6970m and they only do 1.5TB raid setup not 2TB like the samsung.
£2,093.97
Included in your system:
English Genuine Windows® 7 Home Premium (64 BIT)
Alienware M17x Stealth Black
Intel® Core™ i7 Processor 2670QM (2.20Ghz, 6MB, 4C)
2GB GDDR5 NVIDIA® GeForce® GTX 580M
8192MB 1333MHz Dual Channel DDR3 SDRAM [2x4096]
1.5TB (2x750GB) SATA Raid 0 "Stripe" (7,200rpm) Dual HDD
44cm (17.3") 120Hz WideFHD (1920x1080) WLED LCD + NVIDIA 3D Vision Glasses Bundle
Blu-Ray ROM Combo (Blu-ray read only, DVD, CD read and write) Drive
Dell Wireless 1501 wireless-N - EUR
Primary 9 cell Li-Ion Default Base Battery
No Antivirus Software
1 year Next Business Day hardware Support included with your PC
No Accidental Damage Protection
Accessories
Alienware Logo
Steam® Client and Portal™ Game - Factory Installed
Also Includes
Dell Wireless 375 Bluetooth Card - EUR
Internal UK/Irish Qwerty Keyboard
Alienware M17x R3 Order - UK
No speakers required
UK 2M 250V Power Cord
English Documentation
N11W7V01
1 year Next Business Day Hardware Support included with your PC
No Carrying Case
Alienware Resource DVD
Integrated 3.0 Mega Pixel HD Camera
One free Dell Expert call to help with your PC queries within 60 days of purchase
Generic Name Plate Engraving
240W AC Adaptor
(GMT + 00.00) Dublin, Edinburgh, Lisbon, London
£720 difference from Samsung.. So is that 10% GPU difference worth it ? Even if you downgrade the RAM to 4GB Dells prices for RAM are stupid as you realised it only again saves £130 so £590 difference still.