Temper tantrums

My son's just over 2 years old now.. He doesn't speak yet. He has terrible tantrums. Headbutting, smacking in the face - actually busted open my lip yesterday and some time ago knocked a tooth loose. And I know, he gets frustrated because he can't really communicate yet, but I'm kind of out of ideas on how to get him to stop abusing us, it's really getting out of control. I've tried just about every piece of advice I could find. Anyone else have this problem.... Or even better, a solution?