Almonds, Greek yogurt, low fat cheese sticks, beef jerky, sliced turkey, and hard boiled eggs come to mind. There are tons of protein bars out there, too, but they tend to be pricey, have a ton of ingredients (some of which are questionable) and are pretty high in calories, though they do pack a protein punch and are very convenient.
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days