I have the first generation aluminum iMac (about 3 years old) and I'd like to buy additional memory for Lion. Can anyone tell me what kind of memory I need to purchase? Thanks!
200-pin DDR2 667MHz RAM. You can go up to 6 or 8GB, look on www.everymac.com
Btw, the first iMac came out short before 2000, the Aluminium iMac was released in August 2007, the redesigned Aluminium iMacs were released in October 2009.