I recently returned from a vacation in which I realized I needed a zoom lens. Many shots that I took would have been better or improved if I could have been closer to the subject. I use a Canon T1i and am looking for a versatile zoom lens. One that can go fairly wide but can also zoom. I'd like this because I wouldn't have to be changing lenses all the time. I could just pop this lens on and have wide/zoom capabilities. It would be sort of a "walk-around" lens for me. I think I've heard of 18-200 lenses or something? I'm not sure, that's why I'm asking. If price ranges are rated low (cheap), medium (fair), and high (expensive), my price range is medium. (I realize that cheap/expensive vary from person to person but just go with it) Any help/suggestions is/are appreciated. Thanks.