Thanks a lot!
I got most of the guides from itpub.net, under the OCP section.
Right now, I prefer 9i more than 8i, 'cause 9i needs only 4 exams while 5 for 8i plus one extra for upgrading to 9i. And, if lucky enough, I can manage to take the "Performance Tunning of 9i" exam as a Beta participant, 50% discount.
But, kinda hesitating also. As more docs and STS stuff free for 8i available while hardly any STS for 9i. The same as to braindumps.
Maybe I'd like to asking some questions to you in the coming days, if it's okay for you.
Thanks!