Multiple WAN routing in Linux

I need to know if smoothwall linux supports multiple WAN interfaces... or if any Linux NOS does? It doesn't have to be dynamic load balancing, just general port/ip forwarding rules to assign different computers/types of traffic on one WAN interface or another. Any info is helpful, as I am a Linux/networking ch00b.

That's a tall order if you are a Linux/networking n00b. Best off learning networking, then linux. Linux certainly can act as a router, and I don't see why more than one port could be "WAN", you'd have mutiple NICs that would be DHCP clients, and a lot more NAT rules to set up.