From: Santa Rosa, CA
Here's an important thing to know about WitE. When playing against the AI, you can always change the play levels during the game. So if you find the game is too hard or too easy after you get going, you can always adjust the settings. My suggestion is to play a smaller scenario at Normal (something that lasts 10-20 turns, a Road to ... scenario is a good choice). If you win, try another one at Challenging level (or 110 settings for the AI, 100 for you if full Challenging sounds like too big of a jump). If that feels good, then go with that in the full campaign. Of course, if you want to jump into the campaign without playing anything else first, you can always start at Normal and after a few turns crank up the AI help level a bit once you feel like you have some idea of what's going. This is all assuming that you have a decent amount of experience with hex based IGOUGO wargames (which you probably do if you've played WitP AE).
All understanding comes after the fact.
-- Soren Kierkegaard