I know that I am probably opening a can of worms. Looking at maybe going with one of the rev. C PB's. I have a rev. B 12" right now. Want to add a 2nd Mac to the home. The info on the Apple site: It seems to me that this is more important for gamers, than someone liek myself that is more interested in Adobe PS CS (for photo work) and InDesign CS. Or am I wrong? The other question in regards to these two cards is with Tiger and Core Images. Given the two apps that I am most interested in will it give any additional benefit by have the ATI with 64mb or 128mb RAM? I guess the unanswered question is how quickly will Adobe update to take advantage of Core Images. Any insight would be helpful.