I recently built my first computer and am waiting for a few pieces to arrive. I have an old dell with an xp disc that does not work with my new computer. It says it is for use with dells which makes me think they are limiting my use of it some how. Anyone know how I can use this disc to install XP on my new computer/hard drive? I looked into mirror imaging the OS to my external hard drive but I would have to mirror image that to the new hard drive on my computer, is that ok to do? Any ideas on good programs to mirror image, preferably free?