Hi guys. My future SIL asked me to take pics at their wedding. I am a total amateur, basically get lucky taking pics of my kids every now and then, but never did anything like this. They have budget issues so I suppose they think I can get decent pics for them for free. That makes me nervous! Anyway, I have a Nikon D70 with a flash bracket, a sb800 and sb600, and a telephoto lens, an 18-70mm lens, and a 50 mm lens. What is the best lens for this? The ceremony will be catholic mass inside a church and pics can only be taken of the procession and vows. The reception will be outside at someone's home under a tent but I'm told there are plenty of places indoors and outdoors to get pics. Any suggestions? Thanks!!!