I'm not to sure as to what track to follow (DBA/DBO). To give a little of my background, it currently consists of AS400 Computer Operations, in addition a MCSE Cert. Is the DBO track considered a pre-requisite to the DBA?(although not necessary). Also, in considering the DBO track what is the best book(s) or other preparation materials for this exam? Sorry for the inconvience, I currently have this posted on the Certification page, I figured that I may be able to post this on the DBA page as well since many of you have already accomplished what I'm trying to and could help in directing me.

Thank you for your help.