I am looking to upgrade my existing Sonicwall TZ170 firewall. I have talked with other IT people, and a number of vendors and am getting a wide range of recommendations. My environment is: we are a small school with 6 office staff, 14 teachers and up to 70 students online. I am connected to the Internet with a 50/10 business class cable modem. I need to add VPN capability. I do not need content filtering as I am currently using an external DNS service to do my filtering - although, if I can save $ by replacing my external service with the firewall I would not be adverse.
So, I am seeking recommendations from users with first-hand experience in a similar environment.