Okay so I have a film slr and have finally decided to go digital. I have decided on the rebel xti and have found several different kits on ebay that I have been looking at. My questing is which lenses would I be looking for in the kits, some kits have standard 18-55 some have 28 - something and some 70-300 I think. What do these lenses do and when looking for a kit that has extra lenses what lense should I be looking for. I would like to do some close ups of my children and pets and just vacation shots like beach, lighthouse, I would also be doing shots of animals some times. If that helps at all. I would like one with the most zoom I guess.