Hey everybody. I was considering buying an iMac 27" and was seeking some information about some upgrades. Is the RAM upgrade a standard upgrade? Just open up the system and put in the new RAM? I'm aware there are some kits that will help you put a second drive, but is the original hard drive also replaceable? Did the iMac have a removable optical device? Is there an option to add even a third drive? In the future, will I be able to upgrade my processor quite simply? Thanks.