My regulator sucks. http://www.amazon.com/Kegco-Product-Premium-Series-Regulator/dp/B003WWLKUC/ref=sr_1_4?s=home-garden&ie=UTF8&qid=1352747188&sr=1-4&keywords=beer+regulator
I had one line completely break and is now unusable. With that said when I replace it I know I want a dual again, and being able to have different levels of psi on different kegs sounds fantastic.
I'm looking at this one: http://www.amazon.com/Taprite-Product-Pressure-Kegerator-Regulator/dp/B0060NOX40/ref=sr_1_5?s=home-garden&ie=UTF8&qid=1352747188&sr=1-5&keywords=beer+regulator
There's only a couple reviews so I figured the message board would have plenty of knowledge on the subject.
Taprite are good regulators. They sell them at kegconnection and thought they are more expensive there, if you can wait a week or two, they might have one on sale for black friday.