Its looking like the family may be taking a quick family trip to Disney World. I am being setn for a 4 day event for work that will keep me occupied all day (7am-5pm). The wife and daughter plan to hit the parks while I am working I will then join them in the evening and they can show me the best each park has to offer. Anyways looking to rent a lens or two for the trip (I planned to rent to try out anyways so what better reason). I plan to get a UWA not sure which one yet either a Siggy or the Canon 10-22. But I thought I would also try out one of the 70-200's. Do you think I would be better off with the f2.8 over the f4 version, then should I splurge for the IS, there is a decent price difference between the 4 versions:
f4
f4 IS
f2.8
f2.8 IS II
The f4 is dirt cheap to rent, the f4 IS is well in my price range to rent as well as the f2.8, the f2.8 IS starts pushing what I want to spend.
Whats everyones thougths, we plan to spend a evening in each park with a full day in Epcot and half day at Animal Kingdom. The wife will just be using the PS during the day while I am working. She does not like using a big camera.
I will also be without a car.

