You'd be looking at around £700 uk pounds a month for a 2 bedroom flat anywhere within about half an hours drive of Heathrow unfortunately. If you're looking to buy as the other lads have said it's around £150000 for a 1 bedroom flat in this part of the world now.
I you don't mind driving an hour or so each way there's cheaper property to be found 60 miles or so north but the prices are slowly catching up.
I take it it's Virgin you're looking at?