Trip to Costa Rica - which lenses to take?

Hi,

I have read a lot of opinions on this forum, but would like to know what people think about this specifically.

I have a 350D, with at the moment only the kit lens. I am about to buy the Canon 10-22 wide angle lens, but just recently have also arranged a honeymoon to Costa Rica!

What would be a good compliment to these two? I know the 10-22 will be great, and the kit lens is ok at 8-11 apertures. The 350D body will do me fine too.

For surf shots, and wildlife in the jungles, i was maybe thinking about the 70-200 L f4? Also, is the IS version worth the cash? Or is there something else that might suit better?

Thanks in advance.

Jon