Sorted then Wasn't exactly sure if it needed power the majority of the time or not

Just gotta decide how much space I want/need..... With 120gb drives costing £40-£45 now a 60gb drives gotta be worth £20 right? So could I get a fully set up enclosure, with plug'n'play USB 2.0, psu, cables etc, ready to rock for less than £30? I know I can from ebay of course, just wondered about shops....