A while back reader Michael Coyle was nice enough to send us this write-up on how to customize Leopard's Guest account, and just recently he sent along another guide that you might not need right away, but will come in handy when you really need it. He's got an in-depth look at how to create a custom menu style when authoring a DVD in Toast Titanium 8.
As he says, the default styles that come with the application are a little less than formal, so if you want to create a professional menu for the DVD that fits your needs, this will show you how. As far as I can tell, the style is just a Photoshop file with various layers for the DVD to use as a menu (selected, frames for videos and the border around them, and so on); so the trick is finding the right layers to edit and leaving everything else alone (so nothing breaks).
If you've got some DVD authoring in your future, and plan to use Toast to get it all done, there you go.