You'll be fine (Score 1)

I have worked in the Gambling industry for about 3.5 years now (I'm 30 - got out of uni in 2001) and if nothing else I've found that it's helped my career. I'm getting job offers from a wide range of different industries (investment banks, indie software houses, startups, big name search engines etc). Obviously personal mileage may vary and it depends on who you work for (my current company is a big named betting exchange), but I certainly can't see any 'black mark' being applied to you because of it. Just make sure the company you work for is legal and above board or the whole USA thing may be an issue.