I'm going to Paris (museums & touristy stuff), Normandy (omaha beach), Cabo San Lucas, South Africa (most likely will go on a wildlife tour), Guatemala City (nephew's bday). I have an XTi with the kit lens & a 50mm/1.4. What other lens would you recommend? I would guess I'd want something with some decent zoom to it, especially for the South Africa trip. the 50mm should be great for most everything else, and if i need wider, i'll hookup the kit lens.