Wow! Thank you so much everyone. The amount of responses were staggering and gave me a lot to think about.
I just want to clarify some of the things that were brought up by a few posters:
I do not intend on making my room a loveshack regardless of if I'm in a single or a double. I'm genuinely looking to make studying my #1 priority. I was just worried if I do find someone I end up liking (a boyfriend --not a hookup), the issues that might arise with visitation, but I guess you guys brought up solutions for that issue quite well and there are just some risks with closeted realationships that I will have to accept regardless of my rooming situation.
I also am NOT ready to come out. I understand what some of you are saying about my life becoming easier or that I'll become one of the 20320392 gay closeted guys who think straight guys are coming onto them 24/7 but I can assure you I'm not ready to tell the world and I definitely don't want to chase after straight boys. Coming out is a very personal thing and only I can decide when it's the right time. I know you guys meant well, but now is surely
not the time for me.
Also, I realize I kind of came off as a recluse in my initial post, but I'm definitely not one by any means. I'm going to ensure I get out there and party like an animal once in a while, and I definitely will mix and mingle with others regardless. I truly want university to allow me to meet all sorts of individuals and allow me to have tonnes of great experiences so don't worry

but thank you again for the pointers!
I kind of also want to let you know that my school isn't really nice about room changes once the school year starts. They have this strict RA mediation phase thing that you have to undergo when a problem arises with your roomie, and the only time they will make the switch is if the situation becomes dire and the roommate refuses to follow the rules set forth in the mediation. It seems like a really shitty thing to have to deal with while you're studying and trying to get used to university life, and makes the case for a single a bit stronger.
EDIT** I forgot to mention that living on residence is only for first year. In my upper years, I plan to move out into off-campus housing. Just thought that might be important to bring up. **
So now that I've cleared some of that up, let me get to what I think of the situation.
I agree with the people that mentioned that this is a nerve-wracking time for everyone going into residence, including me and my roomie so I guess that is what makes the decision so much harder for me. On one end I'm worried about the possibility of living in a hostile environment where I don't get along with him and I'm miserable. I really don't want this as I've lived with this at home for 18 years, and I really don't want a repeat of that. On the other, I see (not a friendship or one of those fraternal bonding things because I think our personalities and likes are completely different) but an experience and the knowledge that I will gain from having lived with a roommate. I also feel like I'm not giving the guy a chance, but at the same time I feel like I know his type and that we won't mesh. I guess with the advent of Facebook and MSN, there are a million things to hate/judge about your roommate before you even know them it's horrible, but true.
I feel horribly confused and I really can't talk to anyone else but you guys about this so I'm sorry for sounding like a whiny asshole.
I think I'm going to sleep on it for one more night and make my final decision tomorrow.
As for everyone that responded, thank you again. You guys have given me a great deal of advice here and a lot of different ways to think about it. Thank you.