The advantages you would get compared to the cost of a P4 compared to a Pentimum 3 are almost nil. The key things to consider is the amount of memory if you are running a lot of applications. The slowest process on a computer is when it has to borrow memory from the harddrive. So memory is key. The other thing is the speed of your internet connection. I would look into having an additional video card installed, or custom order from a computer manufacturer requesting a multiple monitor card. The only difference you will see if if you run a lot of scanning software and right now we are talking about a second or 2. Eventually the programs will catch up to the processor speed but ocncentrate, on memory, internet speed, and multiple monitors.
Robert Tharp