My main machine is a Mac Mini (Macmini1,1) with a 1.66 GHz Intel Core Duo and 1GB of RAM running SL. I hate this miserable slowcoach machine. I live with an almost constant spinning beach ball. It takes forever for anything to open and I hit force quit more times in an hour than most of you do in a month. Using this thing feels like wading through the La Brea tar pits with cement shoes. My other machine is a Blue & White G3. My life sucks.