Exchange 2K3 & WebDav

["Andrew Brook"]

Hi Everyone,

I've just started looking into developing .NET 2.0 applications that 
communicate with Exchange Server 2003. I've already downloaded the SDK 
documentation which does contain various examples. I don't understand a 
great deal of it at the moment though. Can anyone suggest some good learning 
resources? Not necessarily including code (although this would be helpful). 
Good resources concerning the Exchange Server fundamentals would also be 
useful.

Thanks
AB