I'm heading off to Uni in a few weeks (first week of August, moving in early because a friend is getting married the weekend we are supposed to move in, an dI'm his best man...) and they asked first which dorm you wanted. The one I wanted wasn't even on the list! And I was quite literally there to sign up the very second the webpage was available! And, I sent in application VERY early and did some things really fast so they garunteed that I'd be counted as one of the very early applicants. So I called them up and they gave me some crap about how the dorm is only for summer or something....sounded whack. The contracts for that dorm were seperate, it's not one of those year round dorms, so I don't know what they were talking about. Got them to make a note on my application that I wanted a single room in that dorm anyways. So today I log on and find out I got the dorm room I wanted, it's a four person suite with a kitchen and whatnot. I know who two of my roomies are, but don't actually know them.
We were allowed to ask for one person to room with us but I don't know ANYONE at this uni, but after I turned in the forms, it turns out my neighbor whom I haven't talked to in four years is going there too. Oh well, wouldn't have wanted to room with him anyways.
As far as matching us, they didn't give me anything to fill out or ask for anything, I have no clue how they matched us. I'm in Honors, so it might be the other guys in the suite are also honors. Who knows.
I am a night person but can also be a morning person, and I have no problem being uber quiet if th eother person is a morning person, becuase I want to become a morning person.... I don't like to party and I don't like people drinking or doing drugs, and I especially don't want them puking every weekend, I have an odd "phobia" of sorts with vomit and if someone puked in the bathroom I'd probably pee in a bucket in my room and dump it out at night until they cleaned it. I'm also very big on personal responsibility, ie: you make a mess, you clean it up. So when someone pukes, I expect them to clean it up and I expect it done fast.
If I don't like a roomate, which would only happen if they are pretty much total jerks, then I'll talk to an RA and move, or get them moved. If anything of mine is destroyed or goes missing, I will take them to small claims court. On the same plane though, I am very easy to get along with as long as you are decently polite and don't make too many huge messes, and I will not touch anything that's not mine without a roomies permission. I'll ask about noise levels, etc, to make sure I don't bother them.
As far as them becoming my best friends, I am pretty much a "loner" of sorts, so I don't care. I am not going to college to make friends, and I have a few good friends at some schools nearby, as long as I find a dive buddy, I'll be happy. My roommates and I don't have to ever talk to each other, as long as we all stay out of each others way and clean up after ourselves.

If they want to party or do drugs or sleep around, that's cool, just not in a place we share. At the same time, I'm fine with them partying there in our room as long as I'm in on the planning and know when to lock my door and leave for a night to let them aprty, and as long as they don't break any dorm rules. However, if they are breaking rules I'll talk to an RA about it. Don't ask, don't tell, they can drink or smoke or whatever as long as it's not near me or my stuff (don't want to get thrown out or put in jail for roomies who break the law), and i won't ask.
As for computers, I'm bringing my piecemeal PC, which should be running Linux by the time classes start, and will mainly be used as a media pc, and my MB which will be used for most other things. I won't be brining a TV, but I've got dive gear and music equipment which is coming with me. I think I have 100 square feet but alot of that will be covered by a bed, desk, etc.