Hi All, It seems that my first upgrade (I've already added 2 x SSD's) is adding more memory. Should I pay a little extra and add another 8Gb of 800MHz Ram making 16Gb or buy 16 Gb of the cheaper 667MHz server ram, which seems quite common on eBay? My machine is a 3.1 and has 2 x 2.8GHz cpu's. Also what would be the best arrangement! I think 4 x 4Gb leaves me with free slots for later, should I want more. do you share the ram modules between the 2 ram cards? as I have seen some Mac pro's offered on eBay with only one ram card!! Any ideas? Regards Mel.