quote from ghetto808 "That's the other advantage of the xeons is that you can have two quad core xeons. They dont make desktop motherboards to use two quad core 2 duo. So you can generally have more processors if you're willing to pay the money. They also make 64 bit xeon processors (itanium) while they dont have 64 bit desktop processors yet. Therefore if you can load up on a buttload of ram versus the 4gigs max of your typical 32 bit windows xp desktop." [/B] i am using an ibm z pro 6223 workstation...dual 64 bit xeon processors...(NOT Itanium)...bought it on the blowout desk at cdw for under 1800.00...it is amazing what you can find if you look... works great with win xp pro 64 bit...processor use dropped to under 40% and i can use lots of ram...8 gig fans barely turn on even when we are crazy like this week...