I am up and running on Sophos UTM thanks to MikeMT's recommendation. Sophos 9.3 HW: Dual Core 2.66Ghz, 4GB Ram - $89.00 Refurb Dell Slim from Microcenter. Tossed a couple Gbe NIC's in it w/Cat6a all around. My pipe is a 180Mbps Fiber. Setup was a breeze, this is a professional package. Once I got my port forwards, exclusions, and other tricks in, it was running brilliantly. I dialed up the security giving me full IPS/AV/WF on the gateway, and turned both AV engines on (Avira+Sophos). Some initial issues were; ROKU and Tivos need to be punched through with IPS exclusions. Security Server needed a hole. Encrypted VOIP required exclusions, and SIP enabled traffic forwarding. With all of the UTM features dialed up to maximum I am not seeing any speed degradation with any protocol at all. I streamed on netflix last night without any issues at all. Steam downloads are full speed, and gaming seems stable, and fast. FYI: Some speed tests may report inaccurate results. The reason is they use files to download, often compressed files. Sophos UTM seems to have a proxy AV, which means it is going to buffer then scan, which will skew the Java Applets in browsers. For example speed test is showing me at 6.52Mbps right now. However I can steam a 30 min 1080 Movie almost instantly. So don't pay too much mind to performance numbers on consumer speed test sites, they don't factory AV proxy. Also, I haven't tweaked, I may be able to change the proxy to tweak this - ZyXEL you can turn off scanning of compressed files (which includes EXE's) to make speed tests normal. On Fortinet you can switch to Flow-Through rather than Proxy. Both of which reduce security for a mere cosmetic change!