Hello. I'm new to macrumors. I've been ready around on this site and I like the candor and comments floating about. Currently, I have a working pismo (500 mhz) with 768 M memory and original harddrive. I don't have any problems with it but I would like to have more speed and alittle more "visual real estate" (15 or 17 inch). I'm looking for opinions from others as to whether or not it would be worth it to sell this and get a PB G4 (1 ghz or better). Comments?