[CentOS] good resources for making RPMs

Mon Jul 2 14:57:41 UTC 2007
Rogelio Bastardo <scubacuda at gmail.com>

Could anyone recommend some good resources I might go to for making an RPM?

(Ultimately, I'd like to make a dpkg. I hear alien is a good way to do 
that, but am open to any other ways of doing so.)