But, I still wanted every email I sent to appear to be coming from our church's server, and not have the gmail address appear in the headers.
So, the following shows what I did to successfully accomplish that. Note that I am using Outlook 2003 on an XP computer.
First, of course, I had to setup a Gmail account.
Second, I used Tools|Email Accounts|Add a new e-mail account, POP3 option, clicking Next when appropriate, and setup the initial POP3 settings as below.

After that, I clicked More Settings... and setup those tabs as you see here.



