May have to install Debian on my iBook

I've had my iBook for almost a year now and it does what it should do all the time. But the way windows and menus are handled do not stop to annoy me. Not that their way of doing things is inferior to Windows or KDE, but it is so different. Maybe if I was using Mac OS X exclusively I wouldn't mind by now. But the reality is of course that I use Windows, KDE and other interfaces on a daily basis. Hmm, maybe if I can resize my Mac OS partition I will give it a shot.