Hello folks, I need your help really quick. I'm wanting to upgrade a 2.16ghz Core2Duo iMac (White Plastic, I believe late 2006 model) What type of RAM would I need? DDR2, I know. Is this Desktop ram, or Laptop ram? I'm upgrading it to 4gb, although I know it only technically supports 3gb. How much should I expect to pay for something like this? And what would happen if I were to install some DDR3 1066 chips instead? Would it just downclock?