I have the money and i think I'll go with SCSI on my high end system. It seems like it will be more durable and I like the fact that multiple devices on the same chain can all communicate at the same time. I've never really dealt with SCSI (although a friend of mine has it and he says it's great) so I don't know where to start. There seem to be lots of different SCSI versions. Can someone please reccomend which version to use as well as a good controler card and harddrive. I've looked at pricewatch.com and it seems like I can get a decent one (35GB) for about $200. What are the key factors in determining which drive to buy (RPM, etc).