i have 2 - 24" horizontal with a liquid cooled quad core computer - then using ultra vnc on a lan i connect to about a dozen puters on a rack in my garage, they are hooked up to a signal monitor with a kvm switch for maintenance.
i use one monitor for whatever i am doing (research) and the other monitor for monitoring all the other trading systems, web servers, mail servers, dns servers, data feed servers, ftp servers etc.
mark brown