I currently have the 14/2.5 and 20/1.7 lenses that I use with my G3. I am thinking I need an all around zoom lens to add to my kit. I was considering the 45-200 but with the 2x crop factor, maybe that is too long... I am even thinking about the 14-45 kit lens. Maybe I should trade my 14mm for the 14-45mm? Of course, the cheaper the better. Any help is appreciated. Thanks!