I'm new to FT...but LOVE IT already!!!

I am starting my own business very soon (an independent consulting practice) and know that my days of traveling are going to increase again. I had recently heard about a "special" airport lounge pass you could buy, for around $300, that would grant you access to a multitude of different airline airport lounges. This sounded like a great deal to me, as opposed to buying a pass for one specific airlines lounges.

Anyone have any idea how to find out information about such a pass? What does everyone think of this idea? Would it be better for me to just buy a pass to either Northwest or American lounges, as I know that these are the two primary airlines I will be flying out of Dubuque (NW mostly).

Thanks for the input.