multiple ip via dhcp

[Kendrick-LUG]

I am wondering if there is a way to set up the lo to have a mac addr and 
use it to pick up the other 3 ip addreses for my boxes. 

I am wanting to get 3 to 4 ip's being used via dhcp since dhclient wont 
allow multiple ip's via one card. 

I want to use the mac's of the internal network and set it up so that i 
could have services on eth1 mac a  server   do most serving of stuff but 
some private stuf be on lo(orth eth1:1) 2 and 3 mac b and c wich 
corospond with the 2 work stations.  yet keep the 2 ws on private lan.