mcoxx,
I agree with Jsteve, I think the CBT Nuggets are very good, but you still need several books with the CBTs to learn it well.
I like -
1) Books - Cisco Press and Sybex to cover it well, Cisco Press covers in GREAT detail and Sybex tends to cover just what is on the Exam!
2) CBTs - CBT Nuggets for a break from reading and to get a different view on things - I read STP many times but watching it expl in a video on a whiteboard helped to make more sense. Same for Frame Relay and several other topics.
3) Hands on labs - with sims and or with real Cisco Routers and switches.
I have only viewed one older CCNA LearnKey tape, it was good but no way that I feel someone would have been ready for a Cisco exam. They also seem to be very expensive $$$$.
This might seem like a lot, but I want my students to know the subject and find jobs, not just pass an exam as a paper CCNA or MCSE.
I hope this helps!!
E.A. Broda
CCNA, CCDA, CCAI, Network +