Bad College Roommate problem. Need Advice. What should I do?

I am in college currently, and I hate my roommate. It all starts with him coming back drunk almost every night (he is 18 btw). He, and his friends are always very loud and it makes it difficult for me to sleep.

Also (even when he is not drunk off his ***) he has his friends in the dorm all the time. When I have early class the next morning, I want them to get out because I want to go to sleep. They wont leave no matter how hard I push.

Thirdly, he is a frat pledge. This make it easy for him to get booze. I came into the room, and saw my roommate and like 6 other people drinking in the dorms. This is a direct violation of the rules of housing at the college, and if he got caught, both of us can be in BIG BIG trouble. I don't want that to happen.

Later that night, I had gone to bed around midnight. At 2AM I am woken up by 6 frat guys drunk off their ***. After about 30min of arguing, they leave. 4AM comes around, and my roommate and his friends stop by, and are louder than anything. Around 5AM my roommate passes out, and I have to listen to 2 people having sex because they think that I am asleep.

By this point I have gone to the RA and told him everything that is going on and that I didn't want to get my roommate in trouble because I still had to live with him. The RA talked to him, and things didn't help at all.

Now, yesterday, I was playing Xbox because I was relaxing after finishing all my midterms, and then my roommate wants to play Halo with his friends. I said no because I was in the middle of a game (it is MY xbox btw) and then my roommate tells me that I am no longer allowed to use the tv (it is his tv that he brought from home). Then, his friend brought HIS xbox into the room. Now I know that they will be up all night playing and I STILL wont be getting any sleep.

I love it here at my college, but my roommate is making me seriously consider dropping out. Any suggestions to what I should do?