I've read pretty much all threads that have to do with MacBook Pro memory, and found none helpful enough. So let's straight this thing out once and for all What are the specs for MacBook pro memory? DDR2-667 and memory size (1Gb in my case) are the only things I understand. What else? Are there different kinds of this memory (for instance for laptop and desktop use, any special for apple?) Are the sizes measured in millimeters or inches or anything or number of pins or anything? Then I've found quite a few tips on buying specific brands of memory, but none of them are available here in Finland. The ones I've found (but don't know if they are the right kind) are by companies such as: Twinmos, Buffalo, Kingston and Corsair. (Prices in that order too, twinmos being the cheapest). Any comments on these? Experiences? Any help or pointers are appreciated!