Remote Access to a Dell PE750 Server

Can anyone tell me whether its possible to set up a PE750 for remote access without installing a Dell DRACIII/XT card.It was optional when we bought the server 18 months agao and now you can’t get them even from Dell. Are there any other compatible cards out there? How do I locate one as Dell Tech Support is next to useless.

The server is running Windows Server 2003 (64 bit edition)