I currently have a late 2007 C2D MB (It's a great machine!). I've been searching and reading and decided to buy an i5 + SSD rather than i7 stock. I am a new to SSD. Can someone explain a few things to me? Is the new MBP using SATA II or SATA III (ie for SSD)? Is there a compatible SSD compatible list? I read many problems with SSD (beach ball, sleep mode, waking up, etc). I am definitely going with aftermarket because it's cheaper and i can use the HDD that came with my MBP as external HDD. I read somewhere about the performance of different SSD. Is there a list where shows which one is faster? Is there different size (thickness) for SSD? Like a 2.5'' and 3.5'' HDD. If yes then which one should my MBP use? I remember seeing something like 25nm for 2.5'' SSD.