Is there a way to determine what styles can be used for a nice menu? I am attempting to style a 3-level "nice menu" but between the themes and menu styles, I am having a hard time finding the correct styles to change.  I am using firebug, but I cannot get the styles for some menu items, because moving the cursor over them changes them to hover (or focus).  Unselected menu items are not displaying consistently at all levels the way I want and I cannot identify the styles without hovering on them.  I need to find out what the full styling options are so that I can figure out what is affecting them.
On the HTML tab of firebug there is a "break no mutate" button that will stop whatever javascript adds/changes HTML. This can be used to trap something that is a result of a nice menus change. It can be a little tricky as each hover initiates some javascript and then when you continue execution the break on mutate is turned off, but it gets easier with practice :)