Well at heart I'm a powerbook guy. I want to hit Fn+Up/Down to get page up and down on my iMac too, but my iMac doesn't have a Fn key. So if I could program Control + Up/Down to do this system wide, I'd be very happy. uControl looks like it can do this but doesn't look like it's compatable with Tiger yet.
I checked out the keyboard system prefs, but it doesn't look like it does this either.
Can anyone suggest a tool to do this?