Cisco is TOUGH.
I got an mba without too much study, I always aced high school and college work without trouble, I had a 137 IQ all thru elementary school, and in general, things come easy to me mentally. I aced the network+ and MSCE tests like they were nothing.
Then the first cisco test knocked me on my ass. Cisco requires brains plus a level of conceptualization that many don't have. something like 91% of people fail the FIRST cisco test, the ccna. Then, you have 4 CCNP test to get the CCNP accred. After that, if you spend years on the CCIE, you might earn that and you can write your own ticket.
My own advice is to start with the network+ and A+... see how easy they come to you. If the net+ is tough, the ccna is going to knock you on your ass. Toxie has one talented brain to be where he is, along with awesome work ethic.
Oh, and...