The next time you're hovering helplessly between "consistent with but not diagnostic of Thai" and "raises the question of Chinese", it might be time for you to try the Urbanspoon app for the iPhone.
If you have some residual standards, you can lock in a certain neighborhood, ethnicity or price range. Hitting the "Shake" button will run a cute little slot machine simulation on your phone and show you where you are headed for supper. Reviews for that restaurant are then just a click away.
If you have no absolutely no will of your own, leave all of the variables unlocked, and the app will pick place, cuisine and price for you.
This should also be handy the next time you're at the RSNA meeting and some GE sales-droid is trying to buy your soul with dinner. Just whip this app out and set the dial to $$$$. If you're going to sell out, sell out for something really tasty...