Iptables Firewall script... (just the begining...)

Here is what I have so far. I am just getting started and wanted to know if anyone here is interested in looking at it and telling me what you think, and what you would like to see/add...

It is ment to be a script for a firewall/router for a SOHO type enviroment. Like I said it is still in its infancy.
I will be adding support for...
port forwarding/loadbalancing
VPN - Should be encrypted
and these servers DNS/WEB/FTP
I also want to add support for having the system get its IP from DHCP, I am not sure what I will have to change for that though...

Anyway, tell me what you think...

**edit
If you are not on linux, open the file in wordpad, or else it is really hard to read!

I built my own script a while ago, but was never very confident about it. In the end I switched to smoothwall. I will post my script tonight so you can look at it.

I'll give it a try Keep me posted on how it goes with the updates (Portforwarding!!)