Thanks for the help. I will give the 2.8 a shot. The 2.0 isn't even an option...lol. This is just a hobby for me and my photos aren't likely to land in any publications regardless of lense choice:-)

There are a few indoor trials in the area, but the majority are covered horse arenas that Julie describes. At our local trial, the two ends of the arena face east and west so you have to shoot with the sun at your back and shoot from one of the open ends instead of the center. There are two rings with a center aisle between them.

These are all AKC shows so strobes of any kind would not be allowed.

Thanks Again,
Greg