Add new server to the farm and select host site on this server
Go into the registry of the server HKLM\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14\WSS
For each server make sure the link is going to the server itself. This fixes your actual server link in the programs shortcuts on each server.
Then, go into Central Admin on either server and configure access mappings.
Drop down the application and click central admin. Make one of them the default and the other the Intranet.
So, you should have for instance: DEFAULT http://gigaportal:9111 and INTRANET http://gigaportal2:9111