I searched first :)

I'm doing some pre-flight checks, before rolling out a fw/router.

I realize I cannot do load balancing or failover with multiple wans, but 
can I do this?

3 WAN - 1 LAN - 1 DMZ

nat DMZ to WAN1
nat LAN to WAN2
nat LAN:192.168.1.2/32 WAN3
dnat WAN*:80 to DMZ:10.10.10.1

and have connections answer on the correct interface.
example:
inet-->WAN(n)-->DMZ
then answer
DNZ-->WAN(n)->inet

understand?

thanks for any help :)