I have owned the Nikon 70-200 VR for a few months now. I love this lens but I always find I need a little more reach. While browsing the Cafe tonight, I searched the forums and noticed that the Sigma 120-300/2.8 zooms sold on the Cafe were sold at about the same price my almost new 70-200 VR would sell. And then, I had this little voice inside my head start telling me I could trade my Nikon lens for a Sigma zoom and have the reach I want and still have a fast 2.8 aperture all the way. I know I could get a 1.4 teleconverter and get the reach although at a smaller f/stop but I'm not sure that's the way I want to go. Shooting sports, I need/want all the light I can get from fast glass. Also, it is a lot more convenient not to have to add the TC when the action is moving fast. Comments and LL therapy would be greatly appreciated.