Go to a local computer parts company that sell, hard drives, motherboards, memory, etc and tell them what you need and they could build one for you, youll get a much better pc, could still put xp on if you wanted, plus you can upgrade as you go, so then you dont have to change the whole pc, like pristine said you cant upgrade most of the pcs you get from comet etc, also definatly get external harddrive for backing up. I made the mistake of getting a HP machine, then a few years later i bought all the parts and a mate built it for me, its so much quicker, better memory etc and cost me a lot less then the comp i bought.