I bought my new Pro just a few months ago, still has the factory 4GB of RAM. I find my self constantly running low on RAM, and opening terminal and using the "purge" command to free it up. I monitor all of the time using Activity Monitor. I had Mail, Safari with two tabs open, Rapidweaver and Photoshop all running but just Photoshop on the screen. I was down to 600MB of RAM. I looked at the Activity Monitor and none of the software was hogging up a lot of ram. I used the "purge" command with those apps still running and now I have over 2GB free. What can I to help stop me having to constantly free up RAM? I do have two 4GB sticks on order from OWC, they said that my 13" can handle up to 16GB, is that true?