You're not the only one - I've just started posting a while ago, and I'm in the exact same boat as you.
I think you just have to keep an eye on what makes him angry. My husband is doing great except for his anger problems, also. I find that what makes him angry is whenever I try to talk to him about problems we've been having - how he's almost cheated on me, how he wants a divorce, blah, blah, blah.
I find that the only way to help my husband is to talk to him when he's calm, and don't push any issues that he doesn't want to talk about. Another time I can talk to him is when he's really happy (not manic, just in a real good mood) and if I make light of the issue. He likes to joke around with me about our situation, and that helps, too.
Medication and counselling are what he really needs - is he getting either of these? Because, believe me, if things were going to be this way for the rest of our lives, I wouldn't be with my husband. I'm just sort've riding the storm out until something clicks with his medication, and then we can work on healing any relationships that need mending.
All you can do is be supportive, and try to put your own feelings on hold until he can control himself. I know that sounds horrible, but it seems like that's what a lot of us are doing.
Anyway, I probably haven't said anything that hasn't been said before, but I hope maybe some of this will help you. Let me know if you want to chat - my husband was just diagnosed about 3 months ago - sounds like we have a lot in common.
Coal