I recently broke my bank by purchasing a Mac Pro with 2 quad core 2.4Ghz processors. I also purchased the 27" Apple Cinema Display. I also purchased from OWC 6 X 4 GB of ram. Thus have a total of 26GB of ram. And finally purchased a 240GB SSD drive also from OWC. This machine is awesome compared to the 2006 iMac I was using. Now I have built several, including liquid cooled PC's. But this is my first Mac Pro. And the biggest reason I purchased this instead of a new iMac is because of the ability to upgrade. My question is about processor upgrade options. I do not know if the quad core and the hex cores share the same pin style. Can I, in the future replace the 2 quad cores with the now available 3.3Ghz Hex processors? (Possible faster speeds in the future) If it is possible, what type of configurations will I need to perform. Will I need new heat sinks? Will I need to configure anything in settings or software? Please be as detailed as possible as I am NOT a Mac expert. I understand how to set up BIOS on a PC. On a Mac I have no idea how to set up anything? No idea how to use Terminal or just about any of the technical stuff. I simply use Mac OS X because unlike Windows,....it just works! Thank you in advance for your time, opinions and help.