Ok So I have a late 2007 MBP It holds 120 GB and right now I have about 8 GB left this is a concern for me because I need the memory for CS4 Design Premium and working with larger files. I have decided to wait and buy the next iMac's when they come out and use the laptop for notes in class ect. I was hoping the imacs would be sometime this month but it has occurred to me it may be a few more months and I would definitely run out of space by then. I have a friend who just upgraded his MBP from 250 to 500 GB and I told him I'd buy the 250 from him for 50$. However I have a few questions first. Would the HD even fit in my computer (he has a unibody if that matters). I've thought about buying another external HD so I may do that but not sure cause I'd rather have the memory on hand at all times. So should I buy it and attempt to disassemble my computer to put the new HD in?