Need help with building first gaming rig

First of all, someone on here has told me to ask gamespot users in the UK who will be able to help me out... I have no confidence or time to build this myself so can someone recommend me a brilliant pc shop in the UK where I can customise my own?

*I have £1000-1200 to spend

*I will be running the pc on a hdtv in 1080p resolution and I want to be run the latest games in near to ultra as possible

*My main questions are: do i need an i5 or i7, should I have one gpu or more - so like have space for another in the future

I really have no clue of what to get so please help me!

Todd

If you want to keep it simple then the Gladiator FTW H20 from Aria will be maxing out every game currently avaliable at 1920x1080 (excluding IQ settings). Good components and free overclocks for them.

Aria are a good company and it's exactly within your budget.

If you need peripherals (Mouse/Keyboard/Headset/Speakers) then speak up and suggestions shall be given.

Im not from the UK but know of one shop, overclockers.co.uk. Try that.