I'm having a difficult time deciding between the Dual 2.0 and 2.3 model Powermac so I thought I'd ask for your opinions and whether the 2.3 is worth the extra cost? I mainly do a lot of photo editing, somtimes with 400mb files or bigger. I know the Dual 2.0 only has 4 slots for RAM but I don't plan on going over 2gigs of RAM any time soon. I'm getting the educational discount so please don't suggest a refurbished computer, I also want the dual layer burner on the current models. Do I really need the pci-x slots on the 2.3? I do occasionally work with video but it's really unpredictable how often I'll be editing in the future. Will pci-x be phased out once Apple changes to Intel processors and possibly pci-e? Do you think that it would be smart for me to go cheaper and get the 2.0 to get me by for the next 2 years considering there will probably be a huge speed increase by then, or is the 2.3 model that much better? Also, do you recommend the small graphics card upgrade from the ATI Radeon 9600 w/128mb ddr sdram to the 9650 w/256mb ddr sdram? thanks for any help.