Hey Matt,
This is pretty much exactly what we did when we moved into our new home. We bought a bar from Beach Manufacturing (
http://www.beachmfg.com/user/w3prod1bigb_bars08.htm) - they're sold at game room stores. Bought the Sanyo BC-1206 kegerator and some equip to modify it two a two tap system (two product regulator, brass two-faucet tower, extra beer and air lines). I just had to drill the top of the bar (see the pic above, kegerator is in place of the wine fridge) in order to mount the tower to the top and get the beer lines thru. Kegerator fits two 1/6 kegs (40 pints each) along with the 5# CO2 tank, so we always have two different beers on tap at home.
We do get a little extra foam on the first pull after not using it for a while, I guess because the tower is not cooled.
As jquigley9 said below, it does depend what type of beer you're looking for. You can get a large amount of American Micros in 1/6 keg size, but most of the bigger brand beers usually do not come in that small size.
Let me know if you have any questions.
Dave