Changing a cats routine is usually always traumatic.When the day comes, I would try and get as much of your stuff into your room as possible. This includes kitty's personal stuff too. Once all is somewhat put in order, I would bring your cat to the new place. Keep her in just your room for a few weeks. Let the other cats sniff from under thwe door. Getting them used to each others scents before contact is always a good idea. Even if it means bringing some kind of blanket or towel from each cat so they smell each other. Once she has settled a little and has adjusted to her new room, let her start to venture into the house for a bit. Possibly ask your roomate to confine the other 2 cats for a half hour. Let them meet for the first time under supervision. There will probably be lots of hisses and growls, but don't interfere unless someone is getting hurt. With time, the adjustment should go okay for all of them..females or males together usually makes little difference. Most of the conflict occurs with high #'s of males. Also, it wasnt mentioned, but it also helps if all cats are either spayed or neutered.