Samsung EcoGreen F2 1.5TB Capacity, SATA-II Interface, 5400RPM Spin Speed, 8.9ms Average Seek Time, 32MB Cache, 3 Year Warranty
The drive is over £50.00 and under 30kg in weight so free delivery on their current promo!
Cheap, cheap like the budgie!
Also 3% Quidco available! (pointed out by r2mahara, thanks!)