Replying to Speeding ticket Q&A

I have some questions about one and need some answers, hence the Q&A....

 It was 9:50pm last night and i was on my way home from work(lift op at local hill). I was at a light on Rt 8. right before it went from 2 lane's with lights to a 3 lane highway. I starting to go and noticed a car behind me closely. I accelerated and went to change lanes so he could pass and it was a cop. He pulled me over and went through the routine. Blah blah blah, i clocked you going 78 in a 50. Shit. I got the ticket and so on/so forth.

Now my questions are as follows:
1. About how much will this cost?
2. What kind of points will be on my license, etc.?
3. How much will my insurance go up?

A little background info on me:
I'm 18, had my license for 1.5 years, been in one collision in a parking lot(hit a light pole), was not cited, but my insurance went up from $55 to $90 a month.

Pretty much, how much is the long dick of the law going to fuck me?