For those who do have Front Row Macs, let me add a tip that I was late to discover:
The Menu button normally operates Front Row menus--it's nothing to do with the Menu button on a DVD controller. So if you're watching a DVD outside of Front Row, and you hit Menu, it doesn't go to the DVD menu it launches front row. BUT you CAN use it like a DVD menu button: just HOLD the menu button a moment.