David Bokser - Animator Extraordinaire
dvxuser - All things DVX100, HVX200, and much more
indietalk - Filmmaking Forum
dvinfo - The Digital Information Network. Another good forum for filmmakers
pop2 - Digital Filmmakers Resource Site.

Useful Tools
FlipFlop - Mac Program to Assist in on set Monitoring using a laptop and firwire connection (Flip 35mm Adapters)