I use my Macbook every day for school and website work using Adobe Dreamweaver CS4, Photoshop CS4, and Bridge CS4 on a daily basis. I have noticed that Lion is a RAM hog, as well as Safari. I would think that 4 GB would be more than sufficient. In the screenshot below, I have Safari, iTunes, and my connection manager for my air card open and I have 13 MB of ram free. I am getting beachballs constantly. Coming from a PC, I know how a system acts when it needs more RAM, but Ive not really experienced a lot of slowdown. This is my first Mac, so let me know if I am doing something wrong, or have any tips for improving the memory usage of Lion. So, do I need to add more RAM? Thanks.