To add about the pg up down home end issue that's the beauty of the amazing multitouch trackpad. Using an application called better touch tool it let's me set home end for three finger up down in window. The two finger scroll takes care of pg up down. The app also let's me set four finger click to close out windows in expose. So I don't have to expose click window click close and repeat. Great application very customizable. As much as I long for better spec pc I can't go back without the trackpad and I've grown to love Osx.