Hi all, I am the very happy owner of a 2009 Mac Pro... it holds up to 16GB of DDR3 RAM (4x 4GB sticks), but so far I have only upgraded it to 7GB (due to the cost of the 4GB sticks). I'm already quite pleased with the Mac Pro's performance, but I want it to live for 10+ years... and faster is always better. is it worth upgrading to 14GB (picking up a 12GB kit of 4GB x 3)? I saw a set for $500 and it looked like a good price, PC-8500. Thanks for any advice!