Multiple NICs, Single Uplink

[Cloverleaf]

Hi all,

I've been lurking around in the forums and while I think the answer is "no", I thought I'd ask to be sure.

If I have two firewalls and two external switches, connecting to a provider connection via two links (HSRP, one link per external switch), is it possible to connect two NICs from each firewall to the switches (one per switch, of course) so that failure of an external switch just causes a link to fail as opposed to the entire firewall?  I'm guessing that this would require bonding support, which pfSense doesn't seem to do right now.

Thanks!