I've also got a Flash menu at the top. I originally had it working like the Mac OSX object dock, but I found it to be annoying watching the things slide around like that, so I went with just having the icons "boing" a bit when you mouse over 'em.
Check those tweening classes I mentioned a couple of weeks ago for the technique. Making 'em do that took literally two lines of code.
I also punched up the look a bit. It's not anything groundbreaking, but it's simple and doesn't look hideous.
check it out and lemme know if you see anything horrible. It looks fine in the latest IE and Firefox.