So, I was looking at my old desktop and found nothing useful left on it, all of it having been moved to my external hard drive. I decided that I would like to try out Ubuntu on it, and have the iso burnt on a CD, ready and will wipe the hard drive when necessary. Before I go ahead, could anyone with experience of this tell me how easy it is to switch from windows (xp) to Ubuntu? I consider myself pretty tech-savvy, so I think I should be able to understand it well. It is really old, and all I can remember is it has a pentium 4 processor @ 2.4GHz, 256MB RAM and 40GB HDD.