Cheers for the tip, I will be using that bind now ;)
As for auto-login on connect, it is possible. If you create a shortcut to COD4 Mulitplayer, you can simply add the following to it's "target" line:
+connect "ip address:port" +rcon login "password"
If you have a server password or private slots with a password, just add +password "password"
That shortcut will connect you to the server, and log you in as admin right off the bat. Simply replace "ip address:port" and "password" with your credentials, obviously without the quotation marks.
Hope this helps someone!