I think I've finally worked out my stability issues, I ended up 
replacing the entire box and it seems to be reasonably stable, so I'm 
going to blame the previous uptime issues on hardware.

One question though -- I'm replacing a couple Linksys boxes which 
supported "port triggering"

Long story short, when I established an outbound connection on a given 
port, it would create a temporary inbound NAT rule on an unrelated port 
(or set of ports) pointing to the internal IP which originated the 
outbound connection.

As an example, when 192.168.0.200 connects to an internet IRC server 
(port 7000), I want port 113 forwarded to 192.168.0.200.  A few minutes 
later 192.168.0.201 connects to IRC too (also remote port 7000), port 
113 would be remapped to 192.168.0.201 dynamically.

Is anything like this supported in m0n0wall?

-- 
Why oh why didn't I take the blue pill?