Guidelines for changing a system's IP

I'm working with two Virtualmin Pro servers which are going to be moved to a new colo cabinet, and as a result they will get a new IP address.

What "gotchas" do I need to consider when changing the core IP address for the entire server? I know about the "Change IP Addresses" function in Virtualmin... do I just change the system IP and then run through that screen? Will it confuse slave DNS servers? Anything else to consider or prepare ahead of time?

Status: 
Closed (fixed)