When I set up my Kegerator, I bought a Dual Regulator thinking I would like to set 2 different pressures to force carb and what not...
I ended up changing back to the single regulator with a distributor to split the lines. I carb buy the set and forget method now, and don't need the different pressures. I tried the shaking thing on the first beer I kegged and it came out over carbed.
Depending on what kind of beer you like and carbing to style, setting at one pressure my be all you need.
If you are planning on upgrading to SS shanks and Perlicks, call the guys at kegconnections and see what price they will give you, they are good guys! Then price the midwest kit with the same... See which is cheaper.