Some modern MoBos have integrated SATA RAID controllers. I just built a system utilizing this in a RAID 0 (Striped Array) setup. 2 Hitachi 160 GB SATA drives with a Intel 915PBL MoBO. The results were impressive. Poser loading times and every thing else showed noticeable improvement over a similar system running a single channel drive. Sorry I didn't take benchmarks and these systems are already out the door. So far I'm seeing the best performance from dual core chips. I'm sure this is because Poser can have 1 CPU all to it's self while the other core handles the business of running the OS. It will be interesting the see how the AMD dual core chips stack up to the Intel dual core chips. One extra note about the second hard drive and swap file. If your MoBo has 2 high speed ATA connectors put the Hard drives on separate channels. Slave drives are just that. They take a performance penalty as the Master drive gets to do it's stuff while the slave waits. It may even be worth while to put in a tertiary controller in a PCI slot. If your system is SATA this is moot because there are no secondary drives. The ultimate setup would be to add a RAID card and put in a Raid 0 or 5 array. For the nerds and curious, RAID = Redundant Array of Inexpensive Drives Raid 0 is 2 or more drives working in parallel. Part of each file is stored on each in "Stripes". Drive access is accelerated by the number of drives. Raid 0 provides no redundancy. If one drive fails the whole array fails. Raid 5 is 3 or more drives. It is similar to raid 0 except there is redundancy. Each drive stores enough extra data that the failure of one drive will not break the array. Once again more drive make more speed. The speed of any drive array will eventually be limited by the speed of the system bus. That is currently about the speed of 2-1/2 drives. Building a RAID array with 6 drives will be no faster than a 3 drive array. Currently most system builders are over looking the potential of multiple drive architecture. We are running dual channel ram, dual core processors with dual GPU's. Why not Dual hard drives? I suppose it's just a cost thing and perhaps a point that the consumers need to know about. Any thing that goes to the drive(s) will be twice as fast. Nerd3D