UC Berkeley just released their roommate assignments (housing assignment was released a month ago). You can go online to check. They also have a list of things to bring. Note: They highly recommend you bring a dolly to move-in day, as there may be a wait to get a cart. Albeit you may be going to another UC, you might want to check out Cal's list of things to bring. I imagine they will be very similar (i.e. XL twin bed sheets, etc).
For more info on Berkeley's Move-in Day and roommate assignments:
UC Berkeley Move-In Day
To find out your Cal Rommate(s)