I'm currently in Module 3 of 4 from Cisco Net Academy...
Are you eligible for Version 3.0 testing? From what i gather, they've split the Final exam into two separate Exams... Not that it's any easier, but my current instructor suggests it might help to get more people interested in networking as a career (??)
So far, we've been prepped to expect major subnetting, anything that has a timer, know it (ie convergence times for different routing protocols), and other stuff that we haven't covered yet..
In short, it'll be difficult, but as long as you study ahead, it's supposed to be relatively straight forward, and more about common sense then anything else...