I am wanting to buy a dual quad 2009 2.26 mac pro, run the 2010 firmware and then install a pair of 6 core Westmeres x5660 to x5690's depending on what I can find them for. I have seen the posts here on the installation of some 5590's. Anything different about the installation I need to know on these Westmeres? I will need ram and a better video card. Can I run 1333mhz ram ? What ram how much and where would you get it? thanks in advance for any info I am ready to go.