How to configure PC for wired/static and wired/DHCP networks?

[Tapas Mishra]

I want my netbook to connect automatically to both the office
wired/static network and to the usual wired/DHCP networks.

wicd exists. netsearching hasn't revealed how to configure it for both
wired/static and wired/DHCP except by manually switching profiles.

wicd's profiles can use pre/post(dis)connect scripts but I don't know
how to integrate them into wicd when they are upping/downing
connections on cable (un)plugging.
If it is not practical to solve this within wicd, I'll explore
standalone scripts to configure eth0 on cable (un)plugging, as
detected by ifplugd.