Aw, hell!
If you work for a brewpub, you're golden! Cask ale goes over really, really well in most brewpubs. Make it special by being there when it's tapped, don't do it every day (or even every week), and get the info to your customers to they make it a point to visit that day.
If you work for a small brewery, go out and sell a draught account on a "cask ale & meet the brewer" night!
Whatever you do, make it special. I always took ale from the primary at the tail end of fermentation and did
something to it, whether it's dry hopping, a unique priming sugar, or some sort of spice.
As for the mechanics of it, you're going to need some gear whether you dispense by gravity or with a handpump. Call Paul at
UKBrewing or
visit his website.
Seriously, if you can sell it, your boss won't be able to say no. Talk it over with him, of course. You can email me privately for more tricksyness.
Tell us where we can get your cask ale!
Cheers,
Bob