<p>another 2c on the lens recomendation -<br>
I think that unless you are planning to take pictures in low lights investing in f2.8 glass is over kill. Also, having VR is not going to help much for action photos. If I was in your place, if money is not an object and you a planning to invest in a VERY good tripod, I would buy Sigma 300-800mm f/5.6 EX Autofocus Lens. Than, with proper use, you can forget about cropping and photoshop.<br>
Good Luck. </p>