Have you checked out the protein bar thread here? There are a ton of great recipes! Plus they don't have all that processed crap that you'll find in most protein bars at the store. If you are interested in bars that are low-carb, you can replace almost any recipe that calls for whole wheat flour with almond or pecan meal, which consists of mostly healthy fats and protein
I'm actually going to make this recipe from "Gourmet Nutrition" tonight.
1/2 cup pecan meal
1/2 cup almond meal
1/2 cup natty pb
1/3 cup flax meal
1 tbsp unsweetened cocoa powder
1 whole egg, 1 white beaten
6 scoops choco whey
1/4 tsp salt
Bake for 12 min at 350'F
6 servings
396 cals
33 grams protein
12 grams carbs (5 from fiber)
26 grams fat (13 grams from monounsaturated, 8 from polyunsaturated)
I'll probably adjust some of these ingredients, probably not quite as much meal in my recipe, and instead of splitting in up in 6 servings, I'll split it up into 10