drbk563,
That is very hard to answer - it depends on how well you know Cisco networking! What is your background? Have you done well on other certifications?
Did you take the CCNA yet? How did you find that?
I would say most that have a stong background in networking and had little trouble on the CCNA would spend 3-6 months on each exam reading through at least 2 different books and doing a bunch of hands-on labs!
All I can say is that they are very hard exams but on the other side of it you do not want to even call yourself a CCNP until you know the stuff like the back of your hand!
Just my thoughts!
E.A. Broda
CCNA, CCDA, CCAI, Network +