Hi all, im just about to pick up a lacie rugged small hard portable, to add to my increasing collection of externals! I typically use an external 1Tb, 7200, firewire 800 lacie, with my macbook pro for video editing. However I am travelling and need to buy another one. I figured I could use one of the smaller portable rugged models in my collection, however Im just wondering if I really should pay the extra to get the 7200rpm version or not? The 320GB version costs a little MORE than a 500GB, 5400rpm model. I havent really had any testing experience between the two speeds and am wondering if I am really going to notice the difference or not, if I am using it as the primary scratch disk for Final Cut Pro projects connected with firewire 800?? any experience or advice would be brilliant. Thanks all!