Have a look at http://www.mtv.com/news/articles/1572562/20071023/index.jhtml - a refreshingly honest interview.
Its good to see the Yanks catching up - both Stephen Gately and Mark Feehily from boy-bands came out and both have successful careers - in musical theatre and remaining in Westlife respectively.
The real barrier is still professional football, though. Lots of rumours about various players who all without exception, end up married or with live-in girlfriend within 6 months.
Its a shame, but it would take a brave man to come out in such an environment.