I'm just posting to ask for some advice regarding Power Mac G5 memory. I currently have a Dual 2.0Ghz G5 Power Mac with 2GB RAM. I have recently started getting into photography and am finding the Mac invaluable for editing images etc. This is my question - Would there be any point, or significant performance increase by upgrading the memory from 2GB to 4GB? To give you an idea of how my Mac is typically used, I normally have Safari, iTunes, iCal, Address Book, Quicktime, Preview and BluePhone Elite open along with a few 3rd party apps which reside in the menu bar. Of course I haven't had any issues with performance with 2GB RAM, but recently I have been using Aperture and Photoshop CS2 running simultaneously alongside the apps mentioned earlier. Given this scenario, would it be wise to increase the amount of memory in my system?