Do yourself a favor, read OHbowhntr's posts, and don't just sight in for broadheads. That may allow you to hit where you aim, but you really want your arrows to flying as straight as possible when it hits the animal you are shooting at.

An invaluable resource is the Easton TuningGuide. IMO, it oughta be requiredreading with a test for anyone thatbuys a bowhunting tag.

http://www.thearcher.com/resourceCentre/itemDetails.cfm?itemId=2