Hi everyone, I'm hoping you can help me. For Christmas I wanted to upgrade my brother's Macbook Pro, my wife's Macbook, and if there's spare parts afterward, also upgrade out Mac Mini. The Macbook is a Macbook5,1 with a 2GHz Core 2 Duo and 2GB of RAM. The Macbook Pro is a MacbookPro7,1 with a 2.4GHz Core 2 Duo and 4GB of RAM. The Mac Mini is a MacMini5,1 with a 2.3GHz i5 with 2GB of RAM. For the two laptops I purchased both of them Crucial M500 240GB hard drives. They seemed like the best bang for the buck. Not as fast as the Samsung 850s but not as expensive either. Now my real conundrum is RAM. I would like to max out the two laptops in RAM but from what I saw the RAM for the Macbook is really expensive for some reason. For those that have upgraded your RAM, what is the max you have done and where have you gotten it? Did you go with Apple memory or is that all smoke and mirrors? And if I upgrade the MacBook Pro's RAM, can I use that RAM in the Mac Mini? Any help here is appreciated, I've never bought RAM for an Apple machine before and I'm a little nervous of getting the wrong items.