I'm looking to replace my existing macbook pro c2d 2.16, 3gb ram. I'm looking for better performance, less beach balls and more memory. On a good productive day I see beach balls more then ever. Normal usage I don't see them. I don't use photoshop much, however when I use photoshop I close most applications. Safari is my largest memory user. I always have multiple windows and tabs. I have attached a screen shot with my current memory usage and running applications. Safari can become quite the hog with multiple windows/tabs. Currently only 1 window and 10 tabs in safari. I have been eyeing the macbook air 13" 256GB. The 4GB of ram seems to be turning me away from it. I know 3GB now is not cutting it, I'm not sure how an additional 1GB would do. I would love to have 8GB in the air. So my second runner up would be the macbook pro 13", 8GB ram, 128GB ssd (can't see forking out an additional $400 for 256GB drive, maybe $200-$250). Any thoughts or opinions? Would love to get some feedback on users running both the macbook air 13" and macbook pro 13" with SSD and Lion. Some of the same running applications would be nice.