Honestly though, I think we are going to be ok.
I mean, consider the dip in the market after 9/11, and the one in 1974 when Nixon resigned -- the market did recover ... eventually. After 9/11 it took 54 days to recover to where it was and after Nixon resigned it took roughly 5 years. Either way you view it, it DID recover. Again, I am not so much worried, as I am concerned that America learns from its past.
Howver, I can say that since we have only had 3 "measured" dips like this (the aforementioned 2 and of course The Great Depression), I think we will be ok .... like I said, eventually.
Edit: Clearly you can see for yourself that the DOW did (and does) recover:
http://stockcharts.com/charts/historical/djia1900.html
So right now, I would not go selling anything and jumping ship, for you might really kick yourself as things rebound.