"Corsair CSSD-F120GBGT-BK Force Series 120GB Solid State Drive" I've 4 of this in RAID 0 in a power PC ,good performance but not the best. You'll need a bigger HDD for data as well.

"NZXT Phantom USB 3.0 Big Tower Chassis - White" Should be ok.

"Arctic Cooling Freezer Xtreme Rev.2 CPU Cooler" Does the job ok as long as you don't overclock too crazily, a bit fiddly to fit.

"2 x Corsair CMZ16GX3M2A1600C10 Vengenace 16GB 1600MHz CL10 DDR3 Memory Two Module Kit (32GB in all)" What's the point having 32GB of Ram? Gaming doesn't need more than 8GB so 16GB should do.

"AMD FX8350 Black Edition 8 Core Processor (4.0/4.2GHz, 8MB Level 3 Cache, 8MB Level 2 Cache, Socket AM3+, 125W, Retail Boxed)" "ASUS AM3+ CROSSHAIR V FORMULA S/L" No comment on these 2 as gaming largely depends on Graphic cards.

"ACE 750W BR PSU with 12cm Red Fan and PFC - Black" You're going to spend £000 on other hardwares so please don't skimp on the PSU, if it blew ,it might take other components with it.

"I already have a Graphics card its a AMD Radeon HD6790 I think.." Try to get an Ati 6850 or Nvidia Gtx460 if you can.