I'm looking at replacing my Rebel XT. I've been using the kit lenses for over 2 years now and am ready to purchase better equipment. I'll be inheriting a Canon 24-105mm L and a Canon 70-200mm L f/4. I shoot mostly landscapes (day time and evening), but want to get into macro soon. Would I be benefiting any more from getting a 5DMKII over the 50D? I know the 5D has a FF sensor and the 50D has a 1.6 crop factor. Thanks.