to get the extra memory from Apple or buy it and install it yourself from places like newegg or similar places? Drive and memory can I install myelf of need to get an Apple to install. I have build my own pcs for several years incl the newer quad cores... but liked the mac and decided to get a iMac.... suggestions? I was thinkning of getting a 2TB drive from Newegg and put it in myself... can I if it is a SATA drive? Thanks