First draft, this is what I have so far, any advice is very welcome as my knowledge is pretty limited. Any changes? Additions? Subtractions? Budget is around £1500 for the unit, then i need monitor, speakers, headset, everything really.
Replace the Velociraptor with a Samsung Spinpoint F3 500GB. The Antec 1200 is a big case with lots of cooling but it's really heavy. I own one and it's a bit over the top for my system. But also, you will never have to buy another case as it can handle pretty much anything.
Also you don't need a separate sound card, the onboard Audio is High Def for the motherboard and is of excellent quality.
Cooler Master is a leader in the case sector, but their PSUs are generally considered to be 2nd tier. Look at an Antec or Corsair PSU with 650-750W.
MSI X58 Pro-E is unusually VERY PRONE to overheating in the NorthBridge due to the stock thermal grease thats crappy! Many X58 pro-e users are reporting this and its quite apparent in Newegg.
Take a look at this for help and tips http://www.youtube.com/watch?v=Jp_aqzrB0DM