XoticPC and all the other "boutique" laptop vendors use Clevo chassis for their lappies. So did Alienware before Dell bought them. I buy them in the US here:http://www.lpc-digital.com/
And have them custom built to my spec from the options available. The Clevo P370EM is what you are looking for:http://www.lpc-digital.com/sager-np9370-features.htmlGFX Options:
AMD® Radeon™ HD 7970M 2GB GDDR5
Dual NVIDIA® GeForce™ GTX 670M's total 3GB GDDR5 in SLI
Dual NVIDIA® GeForce™ GTX 670MX's Total 6GB GDDR5 in SLI +$200.00
NVIDIA® GeForce™ GTX 680M 4GB GDDR5 Memory +$250.00
Dual AMD® Radeon™ HD 7970M's total 4GB GDDR5 in CrossFireX™ +$400.00
Dual NVIDIA® GeForce™ GTX 680M's total 8GB GDDR5 in SLI! +$900.00
NVIDIA® Quadro™ K5000M Graphics with 4GB GDDR5 Video Memory + $1,850.00
The dual 680M's are faster but I don't think they $500 faster.
Options on CPU (up to i7-3940XM Extreme Edition ), SSD's (up to 480GB Intel® 520 Series in RAID), HD's (Seagate Momentus available), memory (up to 32GB) etc are many.
Get the lowdown on Clevo stuff and find a UK base dealer looking here:http://forum.notebookreview.com/sager-clevo/91510-clevo-guide-v2-0-faq-reseller-info.html
CLEVO is a large Taiwanese computer company specializing in laptops. While the Clevo brand name is perhaps not widely known, their products are re-branded and sold by known boutique brand OEMs (Original Equipment Manufacturers)… notably Sager, VoodooPC, Falcon Northwest, Eurocom, etc.
They are also considered (by whoever knows about notebooks) to design and manufacturer the best of the best notebooks in terms of superior build quality and innovative designs.