SAS Base/Advanced Certification

Hello all,

I'm thinking about taking the SAS Base certification exam (and then probably the advanced one after that).

I have a lot of experience with SAS and use it all of the time but more for analysis purposes rather than strict programming. I saw that SAS puts out a book for both of these exams - anyone have any experience with it? Is it even worth purchasing?

Is there anywhere I can take practice exams? Any websites? Books containing practice exams?

Any thoughts on how best to prepare?