HP have their sale (£349) and have added a 10% off voucher ("MEGASALE" = £314.10). 8% quidco available possibly making it £288.97 (I've bought from HP with voucher and got full quidco in the past!).
AMD Athlon II P320 Dual-Core processor
320 GB Hard Drive
ATI Mobility Radeon HD4250 graphics, with up to 1405MB total available graphics memory
15.6" High Definition BrightView LED display
Double Layer SuperMulti DVD±RW with lightscribe
*** 2 year warranty included free ***
Wifi / wireless b/g/n