regarding CCNA / CCNP Data Center

Salam,

I am into data center track and need information regarding this
certification series, i have seen in cisco website but i want some help
from you professionals.

I hope cisco press has launched the books for those certifications but i
want to know if only books are enough, i also didnt find if any vendor has
made cbt for them, kindly help me to know what you recommend the course of
actions to overcome those exams.

-- 
Regards,
M. Faisal.
Blogs and organic groups at http://www.ccie.net