Even if youโ€™ve used the Mac for decades, I suspect you have never fully understood the Fn key. Not helping is the fact that Apple sometimes calls it the Function key, but all Mac keyboards already ...
You could reassign the keys needed for Exposé and Spaces, no? I have a early 2008 MacBook so all F-keys except F5 and F6 are occupied by various system control buttons (play/pause, dashboard etc).
I'd like to be able to use my function keys without needing the "fn" key itself when I'm bootcamp-booted into Windows. Any ideas?