I haven't yet voted on any options, mostly because I'm too busy ogling the awesome, but I thought I'd share just in case you hadn't seen this yet. Nikon is having a contest for microphotography, and we get to vote. Did you know that cancer cells and algae were stunning? That bug sperm and ovaries belong on my wall?
Nikon Small World
Now I really, really want a fancy zoom lens for my someday camera.