Getting a new 13" MBP to upgrade my 07, 15". My question is about 8GB RAM. There is a $30 difference from Apples price to what I can get it aftermarket. I know it doesn't void the warranty but do you guys feel that what Apple offers is superior (or lacking?/or equal). I'm new to upgrading but the process seems extremely simple. I believe 8GB will be enough for me. Light Photoshop, the usual items, plus D3 (which I have been waiting to play due to the lack of a computer). Or is 4 plenty? I know the price is not much but if I go the Apple way I have to wait a week for the computer..or I can just go down and grab the 4gb tonight...and like many of you I am going crrazzy =X BTW, first time poster - !!