Hi koobpheej-
I assume you did not get or want student housing right?
Well, aside from looking on your own, you could always call or stop by to talk to Kathy Candito. She is in charge of housing issues. PM me if you need her number, or call UOP's admissions office and ask to be transferred to her.
As far as I know, it is now pretty easy to find a place in San Francisco. Rent is still very expensive, but at least there are plenty of apartments for rent.
I have not had a chance to venture to every corner of SF, but I can tell you that Pacific Heights and the Marina is one of the best areas in the city to live. I would suggest avoiding areas like Tenderloin and Downtown (areas around Mission & Market Streets). But that's just from what I've seen and heard from others so far. Hope this helps somewhat....
See you in July.
Arby
UOP 2006