This seems to be a pretty decent straightforward bit of kit if you don't want to do anything TOO technical with your (CABLE, this isn't an ADSL router) network - quite a lot of 5 star and 8+/10 reviews if you do some googling. Can't find any prices better than around £55+ for the router on its own, and Dabs currently has a bundle including the Linksys USB adapter too (WUSB300N - quick google and the cheapest I can find it is £25 at ebuyer.com).
Don't forget 4% quidco!
Oh and ALSO, I don't know why but when I went to checkout/pay there was a free £5 off voucher for any orders over £50 - definitely didn't add it myself so may be available to everyone? If so only £61 for the router+adapter delivered - steal!