Cheapest so far.. I just got mine from Amazon and missed out on the cracking deal from scan.co.uk
Barracuda® Green drives from Seagate save you time. Available now with SATA 6 GB/s interface and 64MB cache and combined with the industries only 5900-RPM spin speed, you can be sure you're getting the best performance in the green-power drive category. Seagate SmartAlign™ technology simplifies your transition to the Advanced Format (AF), 4K standard. There is no need for time-consuming integration utilities required by similar AF drives.