I sure as hell would not wear a full-out PINK shirt. I swear, on this very board there was a post a while back about America's feminization of men and EVERY reply was like "oh yea, I agree" and everyone was acting all manly..... now on the same board everyones down with wearing pink just because some guy with a queer eye said it was in??? WTF is up with that??? If anything, if your just out on the street (or anywhere thats not a club) you might just pick up more men than women...
If you honestly think pink is a nice color, hey more power to you... wear all pink if you want. But I get the feeling that if it wasn't "in" a lot of you wouldn't even consider wearing it and that's the problem. Nothing wrong with dressing nice and staying up to date but c'mon, you gotta draw the line somewhere.
IMO the best thing to do is stay fashionable but still keep your style, For example I think pink is a damn ugly color and I don't care how many little 120lb Abercrombie guys are walking around with tight pink polos I will NOT wear one b/c it was never my style to begin with. On the other hand I love navy blue shirts and if some navy blue trend started I would probably buy every single shirt, b/c I really do like it.