I have my 120 g in my office foyer, definately a hit with all the clients and it's great in the day time when you need a few minutes.Plus it is a tax write-off.
The biggest drawback is I can't do any lights out predator hunting unless I plan on spending the night sleeping on my office floor. I also try to be here as little as possible on the weekends.
I've come in to my share of surprises on Monday morning though.
Mathew