Oracle 9i Certification

I started using Oracle almost 8 years ago and I was hooked. I really liked the field of databases and to this day I like to write SQL qeries more than anything else. I have been using Oracle every now and then but I never got the chance to explore it in depth. So in order to increase my knowledge I made the decision to pursue Oracle 9i certification. I have a long way to go but the first step is to prepare for the 1Z0-007 Exam. I have the book and other material, so all I need to do is.... STUDY. I am hoping to take this test before January 18 when my Spring '08 semester starts .