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).

If you connect your Mac to an external display, you may find that the Mac's on-screen and keyboard volume controls are disabled. That's because HDMI, DisplayPort, and Thunderbolt connections carry a ...

Mac: The volume keys on a Mac keyboard and an Apple Remote are great ways to control you Mac's volume, but that only changes the system volume, not the volume in iTunes. If that's a problem for you, ...