USB isnt really faster than Firewire, because its speed fluctuates from about 100kbs to 480kbs, tending towards the slower speeds, and Firewaire is pretty much a constant 400kbs. Having said that, USB 2 is fine, really. I've not used that particular drive, I went for a LaCie but I don't really think you can go wrong with most drives like that. Other Option is to buy a high quality HDD and spend ~£10 on an external case, which will wourk just thae same, and you can easily mount the drive inside a PC if you should so wish later on.