do i have any room upgrading my CPU from the P4 2.8? my motherboard supports 'µPGA478 socket with a 400/533 MHz system bus' i looked on pricewatch, they have P4 3.4Ghz processors but they all have 800MHZ buses. is there an adapter or something out there for the µPGA478 socket that allows it to run new processors? actually i see a P4 3.2Ghz with a 533MHZ FSB but its $274. yikes. any ideas?