To all of computer geniuse. I'm new to computers. I am about to purchase a new computer. I'm not sure which one to buy. I'm probably going to purchase a AMD Athlon XP. Should I purchase a Hewlett packard or Compaq presario? They both have the same stuff inside, but I'm not sure which one is better. And which one is the best out of these: Intel Pentium 4, Intel Celeron, AMD 64, AMD Athlon XP? can someone put those in order from the best to the worst? Thanks And please give reasons if you pick Compaq or HP. thanks in advance.