Here is a fun little clip I put together from a visit to the local zoo.

http://www.tampahighdef.com/zoo480.html

Very fun! I've been anticipating taking my EX1 to the zoo with the kids when the weather breaks. I was a little concerned with what the zoo staff might say when they see me. Did you have any problems or did you get permission?

I did not ask. This particular zoo hosts photography classes and such so I would highly doubt any zoo would give you problems. I saw people carrying NFL-sized zoom lenses around.