Cool find Mechy! I would worry about the amount of heat that thing is going to produce. The bad thing about using that one is that you won't be able to fit many Zorro cards in the A2000, or A4000 at the same time due to space limitations, but it should be interesting. Let us know what version of Windows you plan to install and run on that P4. I am guessing that it should be able to run Windows XP, or maybe even something newer.