Hi guys, I am probably going to be buying a white, 20" intel core 2 duo 2.16 GHZ, 2 GBs RAM, 250 GB HD, X1600 128 MB iMac for $800 from someone here at Macrumors. I have a couple questions: -Will the display ever get dim? -Is the X1600 a good card for internet use, iChat, watching Hulu Videos full screen at 480p, a little gaming (World of Warcraft maybe), and DVD watching? -How does the X1600 compare to the 2600 HD Pro? -What is the max amount of RAM for these iMacs?