Since I am face painting (and can't ride ) at the MSU Rodeo next weekend I wanted to get some practice so I am going to take my camera and have some fun. I have a Canon 20D w/a 17-85mm IS; a 50mm 1.8 (I think that is it) and an older 70-200mm from my older SLR canon. The rodeo is indoors and I will have my tripod. So what are tips for ISO, DOF, etc? I want to just have fun and practice so any ideas? I like panning/blurring shots, also like the freeze action shots, any help would be great. Thank you in advance.