The PowerKnights 501 should probably chime in about how they pulled DynDNS as a sponsor.
I use DynDNS all the time, to help setup cheap servers, I think more teams should start learning how to use DynDNS to setup a server. Maybe that means a whitepaper or just a few links to help teams get started.
http://txfirst.org - Lone Star Regional are running smooth with a DynDNS setup!