Date: 24-10-00 19:09
I would highly advise it. It is faster and more robust than IPFW (I know the new version is in the works Will (: ).
It has a lot of pages with help for it, and it works very well. The NAT component even allows you to do VPN from within your network to another one, something NATD has trouble with.
That should give you a ton of help, plus you can email me (: