[CentOS] Static routes with a metric?

Hi,

How can I define static routes to be created at boot time with a specific metric? I have two NICs that ultimately end up at the same peer, but literally go through two completely different networks. IOW, each NIC connects to a different layer 3 device.

Also, note that the machine actually has three total NICs: the third is the owner of the default route. The two mentioned above are for a specialized sub net.

What I basically need to be able to do is this: route add -host h1 gw g1 metric 0 route add -host h1 gw g2 metric 10

Notice that everything is the same except the gateway and metric. I could put this in /etc/rc.local, but was wondering if there's a cleaner way to do it in e.g. the network-scripts directory.

Thanks, Matt