We hired Paul (Zia Networks) on two occasions. Once to fix some bugs on an old network and again recently to upgrade from an old server to a new one, along with a new firewall. Everything went very smoothly with barely any network interruption. Paul is a knowledgeable and friendly guy. I have zero reservations with recommending him for your network/server needs. If we ever need more external support for troubleshooting or setting up new hardware, he'll be the first person I call.
Senior Research Scientist
Southwest Sciences, Inc