Hello, I am putting together a PC build after a long time (almost 12 years). This will replace my 6+ year old MacPro. Primary use for this is to run experimental simulations for work, some pet projects and gaming. After some initial research I have put together this build http://pcpartpicker.com/uk/p/rb6t (full text below). I am looking to buy in early January. I have flexible budget and will add SSD, more memory, and probably another 680 in SLI as/if needed in the future. For now, I would like to limit spending to £1000-£1200. Feedback and suggestions will be much appreciated.