anyone know of a good appetite blocker?!

I have a method that works 95% of the time :

When you start to feel hungry but know you are not in any danger of harming yourself from not eating - brush your teeth.

This minty taste sends sensations to your taste buds and you no longer crave the food. It's also very helpful to achieve a superstar-white-smile :)

Good Luck, hopefully this easy, low cost, home solution will help

Please stay away from the Hydroxycut.
The new product is almost all caffeine.
A quick walk with a bottle of water to sip on is a great hunger pang killer.
Drink ice water with a splash of fruit juice in it.
If you are an "ice cruncher" it gives you the sensation of eating.
Plain popcorn cooked in canola oil is a high fiber, filling, low calorie snack. Eat it by the bucket load if you need to.
Try to eat as much high fiber food as possible. Makes you fill full longer.

If you are starving yourself then nothing will work. You need to feed your body the appropriate nutrients to prevent it from being hungry all the time.