I took the plunge after a few days of research, and I have bought this... I was going to go for Dual GTX 675's, but it turns out that they are rebranded GTX 580's still on the 40nm die. A single 7970M is as fast as dual GTX 580m's. So I had to order 2x 7970m's for maximum graphic performance. I will be buying 3x 256GB M4's as it is £1k cheaper than using Dells SSD. Bought these extras; 3x 256GB Plextor SSD's 16GB 1600 9 9 9 24 RAM Windows 7 Ultimate i7 3920XM CPU.