so i have an ibook G4 that has a broken hard drive, but the screen still works. i was wondering if it was possible for me to be able to hook it up to my mac mini and use it as a second monitor?
Only the 27" iMac can be used as a second display, but you can take a look at ScreenRecycler, though you need an OS on your iBook to use it (manageable via using an external Firewire HDD to boot an OS from).