The navigation bar in my header is getting cluttered (charlestaylortrial.org). I'm not thrilled with the pages widget, and anyway want to use the sidebar real estate for things other than navigation. The natural solution would seem to be drop/flyout navigation menu at the top. Just as an example, when a reader hovers the mouse over "Resources" below it pops up a list with "Documents", "Links", "Daily Summaries", "News". Standard stuff.
Can this be implemented on WordPress.com with custom CSS (please please please)? Or do I have to migrate over to wordpress.org... (please no please no please no)?