Go to dabs.com (UK site). Higher spinning drives are not necessarily faster and they can produce more noise/heat. Stick with 5400, you'll get decent price/performance. I got a western digital 250gb and it's been fine - these drives are quiet and have good performance.
Relevant drives:
http://www.dabs.com/productlist.aspx?&NavigationKey=11154&NavigationKey=42240000&NavigationKey=47250000&CategorySelectedId=11154&PageMode=1&PageOffset=0&RecordOffset=0#Paging
The drive I have:
http://www.dabs.com/productview.aspx?Quicklinx=4LG3&CategorySelectedId=11154&PageMode=1&NavigationKey=11154,42240000,47250000
*edit in bold








