I am purchasing a new G5 for work, and I am not sure which incarnation to buy. I do mostly graphic design, running Adobe CS programs, Quark and Freehand. I also deal with large database files (3+ MB) which our worn out G3 stumbles over. My 1.9 GHz iMac G5 with 512MB RAM at home handles CS fairly well (not running Quark or Freehand) but is a little slow when under a heavy load. Based on that, I was looking at the Dual 2GHz upgraded to 1GB SDRAM. I really don't want to buy one and realize a few weeks down the road that I should have gotten something a little better. Would the 2GHz be sufficient for what I am working with, or do I need to move up the ladder? Thanks.