So I've had my GF1 for over a year now. I love using my legacy glass with it but am looking to get some native lenses too. Here are the recommendations I would like: 1. Native Macro (I like to get in close and shoot small toys and tiny details like flowers) 2. Native Zoom (I want something that has a decent zoom on it but is not too heavy or slow) 3. Fast Lens (what is your favorite fast lens regardless of focal length?