Network *CHG - Token Ring to Ethernet

We're going to be switching from token ring to ethernet and of course we're 
doing a gradual migration.  Aside from the fact that I'll have to change the 
interfaces and routes through CFGTCP, does anyone know what the impact of 
existing installations will be for Client Access?

For example:  When I run OPSNAV and look at the properties for my system it 
shows the old IP address.  When I cut-over to the new address and modify the 
interface and routes, will this automatically modify the system name QSxxxxxxx.