Installing the development branch?

[Charlie Lesh]

Hey all:

What is the best way to install and run the development branch?

Should I install core 1, then update all of my RPMs with a rawhide source?
Is there a more elegant and direct solution?
Is there a way (script?) to make the install CDs from a locally mirrored 
copy?

This seems like it might be a FAQ, but I couldn't find the answer anywhere.
I don't really want to wait until the release of test1 in February to 
start playing!

Thanks in advance,
-Charlie