I just received my new mac pro (2.8 octo, 2600xt) in the mail, i've installed a hitachi ultrastar 750gb drive to use as my photography drive. I only have the stock 2gb of ram right now. Aperture struggles quite a bit. i have 450 gigs of photos indexed in there, but it struggles all the time. I have ordered 4gb of ram from OWC, but im just waiting for those to arrive. Anything else i can do to speed up the program?