Very Quiet, powerful Gaming PC for 500-700 pounds help please

Hello again guys! Time to upgrade my 9 year old pc!

I'm literally quite stuck on how to build a very quiet pc but packs a big bang in gaming and multitasking. I did have an idea on what I was going to build last week but the more I read into it the more lost I seem to be getting!

I need your help to design a pc that is quiet as possible and powerful enough to cope with a 26" HD TV monitor with gaming resolutions up to 1920 x 1080 on games like Crysis and multitasking in the background.

Ok, to give you a head start I want to use a crossfired Sapphire HD 4770 GPU (£150), Antec P182 case (£95) without PSU; because it's supposed to have great insulation and cool airflow, Samsung SpinPoint T 500GB (£55) - Hardrive.

If you have the spare time please post your design spec suggestions!

Oh btw I don’t need a monitor, mouse, keyboard, speakers or software (including OS). My buget is £500-£700 and is to include those items above (which you can change if it design requires it but won't comprimise performance!)

Thanks for your time guys!

The GPU's and case are a good choice, but I would get the WD6401AALS hard drive, its faster and a little bigger.

Then get a PII 720 and 790x motherboard and 4gb ddr2 1066 ram
ram: http://www.overclockers.co.uk/show [...] =MY-149-OC
MB: http://www.ebuyer.com/product/164682
CPU: http://www.scan.co.uk/Products/AMD [...] 95W-Retail

A good PSU to go along with that setup: http://www.scan.co.uk/Search.aspx?q=corsair+550w

And a cooler to overclock the CPU: http://www.overclockers.co.uk/show [...] ubcat=1395

That's like 670 if my math is correct inc VAT.

Another option to bring down the price would be to get the Antec Sonata III case/PSU, its pretty quiet and comes with a decent PSU that would be enough for those GPU's. The P182 is very nice though.

Lotta Brits that post here...