Been asked to take some pictures at a friends wedding next Saturday and boy do I need some help and advice First of the bat lenses, I'm thinking the most useful lens on the day will most likely be my tamron 17-50 2.8, does that make sense? they are getting married in a windmill so reckon the 12-24 could come in handy for that and group shots? Any tips on max ISO to select, would 800 be about the upper limit on the D300 or could it be pushed to 1600 if needs be. Focusing, what's the best approch for captuing a non static object during the day I'd be interested to know whether to go with Dynamic area or Auto area and how many point to set this to 9,21,51 is the 3d motion tracking any good? Focusing in general in say AF-S mode do I focus then recompose or select one of the 51 points available? I appreciate it's a long list so any help even to answer one of the above questions I'd be grateful, having only done landscape and macro photography since I've had the camera I'm completely out of my depth here.