http://www.zoneedit.com -- is your friend. Free full-service DNS hosting. Sign up for an account and have Brinkster update your DNS entries to use zoneedit's ones (they show you how during the registration process). Then ZoneEdit lets you run your own DNS services, even MX servers, e-mail forwarding, URL forwarding, subdomains, anything! I don't remember how I found it but it's hands-down the best DNS service out there. And free!!