[exim] moving to exim

Hi all

For my new company I have just joined.
Ive decided remove M$ exchange to make the plunge and use Exim4 (used to use
Qmail at previous co).

Would anyone please be so kind as to maybe point to some examples, or links
(not exim.org) etc.

An kind of assistants would be greatly be appreciated.
I am totally clueless about Exim.

Could someone please give a lamens term for the definitions of the routers,
transporters etc.

I plan to use Maildir for my users.

Kind Regards
Brent Clark