PM 9600 (G4 800), MacOS 9.1, around 50 to 55 MB with 20 tabs opened, that´s between 5 and 10MB more than WamCom. This is my mainmachine which I use for everything, I strictly use OS 9 (and sometimes OS 8.6). Many big pages (youtube, ebay, ...) run much better and faster with Classilla. I´m verry...