Dual Processor questions
Hi all,I've got some questions about dual processor systems

I'm going to upgrade one of my machines to a dual processor system. I'm confused by the differing opinions and all the variations available.
I've read that there isn't much difference between the P4 and the Xeon, but I've also been told that a normal P4 won't work in a dual enviroment.
So, I need advice as to which processor I should buy: P4 or Xeon?
Also, can you run a dual processor system with a 200watt power supply in a 1u case? Do you need 2 CPU power supply connections?
Advice would be much appreciated
