Lionel, Mary at Residential Life helped me answer your same questions last year. They provide one wall phone, a twin bed, a desk, a nightstand, shower curtain, closet to hang clothes, etc. So you already have a lot of things. There is one light on the ceiling, so you could bring a reading lamp for the desk and maybe the nightstand. Some students used a floor halogen light. You have air conditioning and a heater in the LLC. Some of my friends that lived in the higher floors complained that the heat rises, so that they left the door open to cool off during the winter months.
The major thing you will probably want is a small refrigerator. The school offers voice mail. There is also a free internet connection. You just need a connection to the wall.
You can buy a lot of these things at nearby Target off of Highland near 22nd St.
Most MS-II's will try to help you out. Ask us!
Have you figured out how to drive to CCOM from California? I can help you.