I have just bought one of the brand new refreshed iMacs. I just went for the basic 2.4GHz 20" model. I would like to upgrade the RAM to either 2GB or 4GB. I have had a look, and am not entirely sure what RAM I need. I know it is different to the previous iMac, as the speed of the RAM has increased to 800MHz i think. And is PC2 6400? I have looked on crucial, and used the system scanner, and it did not come up with anything. I am in the UK, and was wondering if anyone was also looking for new iMac RAM, and had found some. If so, could you please let me know. Post website links on here if you know them. Any other help regarding the RAM in the new iMacs would be greatly appreciated. Thanks.