Developing Fedora Derivative distro yum "priority" question

[Mark]

Thanx for that, seth. i couldn't find anything like it.
More info for that plugin (in case anyone wants to know more about it)
http://wiki.centos.org/PackageManagement/Yum/Priorities

And another question.
how about law stuff.. lets still imagine that k3b package but than
with ffmpeg.. will that be hosted on the fedora servers.. or better..
can Fedora Derivatives be hosted on the fedora servers?