Gary,
The purpose of me posting my equipment was to show you and Jim Poor what to strive for as far as viewing stations.  I started off with one computer to do my processing on and then allow customers to view the photos and after each job, I built or added on to my systems.  I have found what works fast and what doesn't work fast.  My computers are 100% reliable and never crash on me or my customers.  My next trailer will be set up to run a minimum of 8 viewing stations as I have found out, the more viewing stations you have, the more sales you will make.  My computers & software cost around $5000.00 to build.  It allows me to make my living on the sales from the event and my internet sales is then just extra found money.