Here are a few websites I've come across with great (filling) snack ideas. Some are healthier than others, but even still, it's better than the Haagen Daz that I'm craving... Enjoy!

http://www.sparkpeople.com/resource/nutrition_articles.asp?id=1938

http://www.mythirtyspot.com/90-snacks-under-100-calories/

http://www.foodnetwork.com/healthy/photos/foods-with-100-calories.html