Helpdesk System

[eluser]PixelPanic[/eluser]
Hello

I'm about to use Codeigniter to create a helpdesk system.
I have already created a a CMS System designed around Radio Stations. But would love to create a helpdesk ticket system so DJ's can request help.

However I was wondering how can I get codeigniter to monitor a mailbox so when something comes in it creates a ticket. As that feature would be ideal.

Whats the best way to go about this?