I've flown commercial only three times since 9/11; twice for mandatory business trips (2004 and 2006) and once a charter flight that was bundled with an all inclusive vacation deal (2004).

That said, I agree that Precheck is a good idea. But since 9/11, I'd as soon take a beating as to get on a commercial aircraft and I honestly don't see my attitude changing. I'd be fine with this being the last commercial flight I ever take.