Actually, what I want is my host to be the same, and have it dish out my ip on either macaddress. I thought I could specify multiple macs in the hardware ethernet lines, but that doesn't seem to work.
No answer for you, but you might want to check the ISC dhcp-server mailing list archives. Lots of expertise there.
<http://www.isc.org/index.pl?/sw/dhcp/dhcp-lists.php>
