COMING OUT TO PARENTS

So, how is one supposed to tell ones parents about ones homosexuality? And when? Those are very important questions in my life that I'll have to figure them out eventually. But I feel there is no need to hurry. I mean, I figure that I should inform them of this news after I'm financially-independent and stable. But the thing that worries me is that that might take a long time- almost a decade. And I feel that as a person ages he/she becomes more rigid in their set world-view and thus it becomes difficult for them to change or accept something new. So, maybe I should tell them now when they seem in tune with society and quite liberal aswell. And if I start living out the gay lifestyle soon then I think I would prefer that they know the truth rather than hiding from them all the time because that might get frustrating. Oh, man, decisions...decisions!