I have the 20" iMac with OSX, 768 (256 + 512 (added at the Apple Store)) I downloaded a widget that displays my remaning Physical Memory... http://www.widgetgallery.com/view.php?widget=35798 Right after I turn on the computer, and the iCal loads up, it's down to about 500. After I run EyeTV and hop on a couple pages on Safari.. it drops into the red at around 50mb free!!! Also, with ALL applications closed.. and I try to export an MPG to a .Mov, the computer locks up after about 75% (exporting about 600mbs) Is this something common? I guess I would just HATE the idea that I am doing something wrong.. and that my Mac is not living up to it's full potential... ANY advice, suggestions would be GREATLY appreciated... This forum has helped me out so much in the past... Thanks in advance!