Thanks for the input guys. I ended up checking out Lowes last night and picked up a couple of their union ball valves per tedu's recommendation. They seem to be built quite a bit better than the one HD sells, turn much easier, and the balls are serviceable.
Also, just for info: I got 1.5" valves for my 1" piping to minimize restrictions of flow because size of the hole through the ball inside the 1" valves reduces quite a bit. These particular ball valves are uni-directional, meaning the flow has to be going a certain direction, that is marked on the body, for it to operate correctly.
Thanks again