Thanks Gene and Dan. Dan, I'll shoot you a PM. Maybe we can work out a trade.
I used the 70-200 vr2 at my son's b-day party today and had a lot of trouble freezing the action shots. The party was at a gymnastics facility so the kids were flying all over the place. I wanted to get them in midair, but I missed almost 100%--they blurred. I want to try to get out of full auto (a) because it's time to actually learn how to do this stuff and ( I prefer to tell the camera where to focus. But I think I forgot to think about shutter speed and got a lot of blurred shots. The facility is huge and indoors, but well lit. However, I probably should have used some flash. I don't know. I still have lots to learn, but pretty disappointed in myself for not being able to get those shots.
Any advice for future action shooting would be much appreciated. I'm definitely not a natural at this.