After much pondering, listening to forums and checking various options, I decided to go with GammaRay 256 - a USB, 256 digital input board from Beta Innovations. This little board is reliable, has an excellent Windows-based setup utility and of course, has enough inputs to simulate a Boeing. The support that Leo Lacava - the owner and developer of Beta Innovations, is superb - to say the least. He listens to the market and his products are stable, reliable and professionally manufactured. I have a feeling that if I don't do anything foolish, this module will last me at least a decade without a problem.