We average about 2 hrs/week of IT support over the course of the year, excluding reports. When we started going electronic, I proclaimed very loudly "I am NOT going to be tech support for this system!! I am going to be busy doing doctor stuff, this is getting out of the hobby realm." It was a smart move on my part. When stuff does break, it is while I am trying to do my doctor stuff earning a lot more money than I pay my IT people.
Our system is very similar to yours. One of the staff is facile enough that she can do a lot of little things that lie between really basic Windows tasks and full-on IT support. IT does regular checks like restoring off site backups to assure they are working, making sure the anti-virus is updated for everyone, monitoring upgrades on the servers, and other maintenance tasks.
