ipfw rules

[RYAN vAN GINNEKEN]

I know this has probably been posted 1000's of times but i would like to 
set up a ipfw firewall i run many services on this machine. It acts as a 
gateway for my network
APACHE web server
IMAP mail server
SMTP  mail server
BIND name server
FTP server
also i would like to be able to forward packets to a machine on my 
network for VNC and also gaming purposes.  Just interested in where to 
find some good rules sets and documentation on the subject

THANK YOU.