Just the other day my colleague - John Howard - made a new tool available to the world.  HVRemote is a script file that easily automates the configuration steps needed for enabling remote management of Hyper-V on both the server and client ends.

You can read more about the tool here on John's blog: http://blogs.technet.com/jhoward/archive/2008/11/14/configure-hyper-v-remote-management-in-seconds.aspx

Or you can download it from here: http://code.msdn.microsoft.com/HVRemote

Cheers,
Ben