Is there anyway to get the f3 key to activate spaces on the new wireless keyboard without pressing the fn key or changing it so that all the function keys act as 'normal' function keys rather than the special keys (volume, birghtness, etc)? For instance, the default has these keys used for their special functions and you have to press fn to get them to act like function keys, but this then uses the f3 key for Expose. In order to use this key for Spaces instead, you have to either hold down the fn key or you have to switch all the function keys to be used as normal function keys rather than their special uses.
My problem is that I just got a trackpad and am using the gesture to activate expose, but I miss being able to use my trackball button on my mouse to activate Spaces. I figured I could set up a simple keyboard shortcut for Spaces, but then I ran into this weird function key issue.