the first question is what do you consider a decent living. after that it becomes much easier to answer the question. If you want to live at the quality of life of your average civil servant (somewhere around 50,000/year pretax which comes out to be (in nyc at least) about 550/wk after taxes) then I think if you are rock solid you could live off of 6/12 or 10/20 with little issue assuming you have sufficienct bankroll to survive the inevitable up's and downs of playing every day. If you find a solid regular game at a casino you begin to recognize the other semi regulars which is a big bonus as well as the fact that you eat and drink for free during your time playing...

I know I'm going to hear the bb/hr crowd say it is impossible to live at these games but I really don't see where you can't make at least a hundred a day playing one of those midlevel games. If you want to live more extravagantly then obvioulsly you need higher stakes