Drive speed is very important to Poser. Drive speed as a lot to do with factors outside the HD. In a dream system you would build a RAID5 array connected to a PCI Express controller (And of course a PCI Express board). This would give you the maximum drive through put. BUT a drive array like that costs a load of dough. To cheat for speed you could try a simple stripe array (RAID0) Some main boards with SATA support this directly. The extra dough you're gouing to spend to make the system 64 bit would probably be better invested in a rocklin drive array or more RAM. Poser is not 64 bit so half the CPU's horse power can't even be used on it. There are precious few 64 bit apps out there. Technology rule #1 Never buy technology before you are going to use it. By the time you do use it it will cost half as much! Nerd3D