Can somebody enlighten me: is it possible to change the
ethernet [MAC, ie xx.xx.xx.xx.xx.xx] address of a network
interface?

It looks [from the ifconfig(8) manpage] like setting the
ethernet address  should be possible in a similar way to
setting IP address, but I can't seem to figure out the
syntax.  [On linux boxen, I've previously done this with the
"hw" option to ifconfig]

Mark <><