Hello, I am new here, so please forgive any ignorance as far as mac hardware goes. I have the early 2008 iMac (just upgraded to Lion) I have 2gb of ram and would like to upgrade to 4gb. The 'about my mac' section has directed me to this page of the different requirements. http://support.apple.com/kb/HT1759 Could anybody link me to the ram I need or suggest good places (and makes) to buy? Thank you!