There are lots of people in the forums here who are studying for SCJP 1.4, 5 or 6. Have a look at the questions and discussions that other people are having here and have a look at the SCJP FAQ (the link is in my signature below). And ofcourse, if you have questions yourself, you can post them here.
Good luck with studying. [ March 05, 2008: Message edited by: Jesper Young ]