Outlook isn't all that complicated to use once you figure it, but trying to explain how to do something in Outlook often takes longer than just showing how to do it.
Many of these tutorials area also available on Slipstickcom's YouTube channel.
Too Many Navigation Pane Folders? Hide Them!
The most annoying problem with multiple Exchange accounts in an Outlook 2010 profile is the ridiculous number of calendar and contact folders cluttering up the navigation pane. There are ways to deal with the extra folders.