Hey thanks don! I was thinking the 17-50 might be too wide to get good closeups of the animals but makes for a good shot of the cage area (but not as good since it's obviously a zoo and not as realistic).

On a side note, do you use firefox? I use this cool plugin that lets me view the EXIF info right from the browser if it's still embedded on the pictures. I simply right click and go to properties to view all the juicy info! It's called FxIF. It can even copy and paste info too.