Right so i was wondering what RAM i would need to get to upgrade my iMac Specs are: 21.5" 3.06 GHz Intel Core 2 Duo 1067 MHz RAM 1. Where could i but RAM for this possibly in the UK? 2. Also i hear the 21.5" has 4 Ram Slots? True or False? 3. So i could put 4 2GB Ram in my iMac so that will make out 8GB Ram? 4. Does it work like this? help me please i'm no computer wizz. 5. Also can you update normal memory or would i have to get an external drive? 6. If i ever wanted my iMac back to how it was when it left the box, could i just get the Snow Leopard CD that it came with and just re-install Snow Leopard over my current one, and it will get rid of everything and just replace it will a fresh Snow Leopard with absolutely to files left behind? THANKS, I know it seem's like a lot, but this seems to be the only place i can find to help me.