Cygwin playbook?

A colleage wants to work with us on a git project but is Trapped In
Windows (TM). He does have a cywgin install, and I was hoping to find
a cygwin install howto. Alas, I couldn't find any (is there one and
Google doesn't know about it?).

Now, I am a bit at a loss, as I don't have access to windows. So for
you cygwin knights in the woods, a few questions...

 - What cygwin packages are needed?
 - Need to fudge makefile?
 - How do I install for personal use?
 - How do I install in /usr/local?
 - Anything else I should know?

I'll be more than happy to shape the replies in a nice wiki page...
(Mercurial has one already
http://www.selenic.com/mercurial/wiki/index.cgi/WindowsInstall )

cheers,


martin