>so I don't have time to try out a bunch of ideas, so I came here thinking some of the engineering types might have some thoughts on what might work best.

This should be a cake-walk. A piece of cake really. One might even say, as easy as pie. Surely, I hope you have a slice. I think this is a case being able to have your cake and eat it too. I mean, let them eat cake. A good design, will be the icing on the cake. I hope this isn't too cheesy, you might pound me.