jQuery each() with a delay

So, I would like an element to fade in and wait half a second, then fade the next in etc...

My code:

$('.comment').each(function() {                 
                    $(this).css({'opacity':0.0}).animate({
                        'opacity':1.0
                    }, 450).delay(500);
                });

I'm obviously doing something really silly.... (I hope)... My question is: Is this even possible? if not - can anyone point me in the right direction?

Thanking you!