Morning Banditman, I'm afraid I like to stay out of arguments like this, because there are always two sides to the story, and without both sides we can't judge the right and wrong of it.
When I read your rant I thought two things:
1. Oh god, he's going to have a heart attck in a minute - To get home however long after an incident and still be so wound up about it suggests you drove home concentrating on nothing else but how you would show that b4stard!
2. Why do all Bikers feel that the fact they own a bike (I assume you also ride it, but don't know how well, how often or for how long) makes them infallible in every form of transport. I for one know that having ridden bikes for almost all my life, often as my sole form of transport, If not then a bike is my primary form of transport, that makes me a crap car or van driver!
Now why not just accept that you crossed paths with someone who had a different idea of who should have given way, and luckily no-one was hurt. I don't see the other party posting here to say what a tosser the truck driver who pulled out in front of him, not judging his speed correctly was!
Ride safe and find a way to get rid of that anger before you put yourself in an early grave.