RAM prices have come down a bit lately and I'm considering adding another 4 GB to my iMac's stock 4 GB configuration. I understand that the best way of doing this is adding 2 x 2GB sticks. Here is a kit on Crucial's site: http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=FC4829C3A5CA7304 My concern stems from the posts on this forum and others related to random shutdowns experienced after upgrading RAM on iMacs. Will this be a problem for my case? It seems most reports involved iMacs upgraded to 12 or 16 GB of RAM. Any ideas?