Two sticks of 2GB memory for the MacBook Pro. Was using 2GB up until now but running Windows on the machine at the same time was a bit slow. Parallels enables one to run OSX and Windows at the same time. I run Windows to do QA on IE6/7 and Firefox.
Never used a machine with more than 2GB before ^^;
How much memory do you have in your machine and what do you use your machine mainly for? Is your memory enough for what you need to do?
I'm mainly programming and use the odd graphic package now and then.
