[CentOS] Anybody ever done 6 monitors on one server before? :)

My boss wants to put together a Network Operations Center, with a 
network monitoring server as the centerpiece.  He wants that server to 
have 6 monitors: 4 for network monitoring tools (rrdtool, etc) and two 
for running commands and the like (ping, traceroute, etc).

I know that with the right video card(s) you can have two monitors, but 
has anybody had 6?

Thanks!

Ben