getting off topic but...
Setting aside the legality issue...none of you are that good and no one you don't see on TV is actually as good as they say they are.
The most profitable poker pros are not huge TV names, because they make their money in cash games. TV poker is concentrated on poker tournaments, which tend to attract the most risk-loving bunch around--many of these guys often go flat broke; even names like Hellmuth, Lederer, etc., are often staked by cash game players who you have never heard of.
While I know a great deal of people who exaggerate their poker profits, there are a LOT of people who make 100-200k a year playing mostly online poker(as well as a few who make much more...I have friends who have won/lost ~100k in a single week!). So while it is not like the movie Rounders, it is an actual alternative career path. And if you are really worried about legality, move somewhere like Buenos Aires with low taxes, few laws, and a very low cost of living.
In re: advice using law degree as an MBA. I like this advice, but my guess is that those students at Columbia an other top schools who have business backgrounds are not the same students struggling to get jobs. I have below average grades at CCN, but I think my business background went a long way in the interview process. Most people who are really struggling had came straight from undergrad and are confused about what they want to do. For those struggling from top schools that may just have reallllllly bad grades, but some work experience, I would definitely suggest looking into banking and consulting, which may be better in 2 years than the 3L market. [I fully understand banking has been hit VERY hard...but it also has a history of bouncing back, and bankers are far more willing to overlook the fact you didn't have a 2L SA job. Also, banks hire analysts for 2-3 years, so there is a constant need for new gruntworkers. Sure, you may feel like it is beneath you to start as an analyst instead of as an associate, but with a JD under your belt you can transition from analyst ->associate MUCH easier than your peers.]