I also think Jang's book is worth reading. But, since the present book is a little dated, maybe it shouldn't be your only study matterial?
RHCE Red Hat Certified Engineer Linux Study Guide (Exam RH302), Fourth Edition
by Michael Jang ISBN:0072253657
McGraw-Hill/Osborne © 2004 (755 pages)
As for the guy who asked about braindumps, you can go here and download all you want for free:
http://certfiles.com/
Be aware: few questions in the dumps are actually on the test, and -very important- a lot of the answers on the dumps are wrong.