Okay well in likely less than a week's time I'm going to be getting a new 13" MBP (the base model) and I'd like to up the RAM since I plan to get VMWare Fusion to run the original Call of Duty plus programs I'll need for college than run on Windows. (I have a copy of Vista already). So, I noticed that 2GB RAM standard is actually two 1GB sticks... and according to Crucial.com, I think it's saying to install future RAM like that? I don't know... it says matching sticks gives optimal performance. So my question is... if I buy a single 2GB piece to total me out at 4GB... would that be bad having 3 sticks (1GB + 1GB + 2GB)?