Doesn't it also depend on what RAM he has at the moment? what I mean is, if he has 2x256, shouldn't he get another 2x256? Or can he get 2x512? And if he has 1x512 (not sure if it is likely), can't he get by with just another 1x512? Or should he go with 3x512?
Finally, if he has 2x256 and he...