Upgrade Your World
If you haven't already taken the plunge and invested in Adobe's Creative Suite, now is the perfect time. If you're thinking about upgrading, what are you waiting for? As I mentioned there are some flaws with some of the tools that will hopefully be fixed with a patch or possibly in the next version of Creative Studio (such as the lack of transparent gradients in Illustrator), but the improvements far outweigh the niggling shortcomings. You'd do yourself a great disservice if you stuck with your old version of Photoshop, Illustrator, or Creative Suite.