I am a complete novice when it comes to understanding RAM, so I was hoping you guys could help me out. I was recently informed that my late 2008 unibody model MBP can now upgrade to 8GB. I am all kinds of ecstatic, but since I don't know anything about memory, I don't know what I need to look for. About my Mac. So I googled a bit and I understand that I need to get a DDR3 SDRAM 2 x 4GB kit. I also understand that 1066 MHz has something to do with it (and is it odd that the memory on my shows up as 1067 MHz?), but when I looked for 8GB kits, such as this one, not all of the information is listed (or maybe it is and I just don't understand it). Are the number of pins important? So in essence, I am asking what I should be looking for when I buy RAM for my MBP? Also, has anyone already done this, and if so, how did it work?