I have a mini that serves double-duty. It's connected via HDMI to my HDTV and also via MDP > DVI to a monitor. An external drive connected via FW800 contains my collection of movies and TV shows, which are delivered via Plex to the TV. Work can be done on the mini using the monitor while a movie plays on the HDTV. I can run the mini from my MBP remotely from anywhere in the house using screen sharing. The mini is connected to the network wirelessly, but the internet connection doesn't skip a beat. The only issue I have is that when I take the Apple Wireless Keyboard very far from the mini, to control movie playback, it sometimes drops the Bluetooth connection.