laptop netconfig

[Justin Hagemeier]

I have a laptop with three possible network configurations that I would like to 
use.
        1. Ethernet 10 Mbps DHCP-sv
        2. PPP daild
        3. None at all
is there any suggestions on tools for configuration techniques for this kind of 
setup. It looks as if I could do it if one of the init.d scripts sniffed out 
the PCMCIA to see if there where activity, then if there was not it would start 
daild instead of DHCP.  I have no idea where to begin on such a thing though.  
Any thoughts?
Thanks in advance,
Justin