Hey all. I'm expecting to take delivery of a MacPro early tomorrow morning. Like most people would, I configured mine with the least amount of factory RAM so I'll most likely bump it up. I just wanted to know if any existing users could share some experience on the difference before and after upgrading RAM. For your info I mainly use my computer for automotive design - Photoshop, Painter for sketching and rendering as well as AliasStudio and various 3d rendering apps in windows. Oh yes and also aperture for my photography. I guess what I'm really asking is how much ram does it take before you stop realizing any practical real world benefits. Many thanks in advanced.