Resource is Berkeley's official student handbook. The 2007-2008 online edition is chock full of useful information and links to other campus services. A lot of Resource is lost when formatted for your browser. You won't see 120 neatly laid out pages filled with photos, graphics and student quotes, but you still get all the same great content.
Hard copies of Resource are available at two local bookstores for $4.75 (includes tax):
The Cal Student Store (ASUC), MLK Jr. Student Union, 510/642-9000, extension 659
Ned's, 2480 Bancroft Way, 510/204-0900