I was using a commercial keg for a year or so before I started home brewing. My kegerator only had a single tap and I was constantly having to switch out taps and I had to untap to force carb. Additionally switching out taps with the quick connects was error prone (read->I leaked entire tanks due to my #fail). This just wouldn't do so I made some updates.
Here is the new setup:
1. Splitter at the regulator so I can force carb outside the kergerator and not have to untap to do so.
2. Inline splitter so I can have two cornys tapped and keep a sanky online and shutoff for the occasions when I'm out of home brew.
Of course I pressure tested slightly over my force carb PSI at each step.
Absolutely. I had a birthday party at my house this weekend so I had to play it safe. SWHBO requested a hefe so that was on the tower. The Stone Ruination clone was, unfortunately, on a picnic tap served from within the kegerator.
The two tap tower is in the planning stages. I move slow so it might be a few weeks.