I have a bogen 503 head, a

I have a bogen 503 head, as well as a 501. I like them both, though the full fluid of the 503 is a little smoother.

A/T is good, but not my favorite. If money is no object, Shure has great gear. On a more realistic budget, Azden, A/T, and a few others are decent.

We use two rolling cases that are essentially carry-on sized wheeled suitcases. They work great for what we do. We tried bags at first, but with 3 cameras and all the gear, rolling cases was just easier.