Any program that gets minimized on your second display will now default to the main taskbar, and you've got some additional space for anything you so desire. Can I suggest checking out an idle desktop ...
I just installed Windows XP Pro and put on the Omega/Plutonium drivers. I need to be able to extend the taskbar to the second monitor. I see that Ultramon can do this, but I don't have $40 to spend on ...