Iron Man, of course, started something new though... It was the first of the many films that studio will produce about The Avengers. The second, of course, was The Incredible Hulk. The next will be Thor and then in 2011, Captain America. The Captain hasn't been cast yet. Fan boards are abuzz with suggestions and speculations. I have two suggestions... I'm sure neither will be listened to... as is usually the case, but until official word comes down from the studio, I hope anyway. I've heard that they want someone younger than both of my fav's, but honestly, I can't imagine anyone in their early-to-mid twenties playing the part. We're not talking Private America... it takes a little time at least to get promoted to Captain, you know. Early 30s seems more reasonable to me than early-to-mid 20s.
So Jensen Ackles would be beautiful and amazing, and he's my number 2 choice.
But my number one - simply because he exudes this amazing energy like he does CO2 when he exhales and just as easily and I find that incredibly hot, I don't care what, and I think that would serve him well as Captain America - John Barrowman. For real and true. I know he's 41 years old, but I defy anyone who doesn't know that to guess a single day over 33 on one of his bad days! Seriously, he's so young looking, it's superhuman.
And when I first heard they were doing Captain America as a movie, I thought of John Barrowman in the role instantly. Jensen is freaking gorgeous and amazingly talented too, and would do an amazing job. I don't mean to slight him in the least by picking John Barrowman over him. I wanted him for the young Captain Kirk in Star Trek 11 so bad and was so disappointed that he wasn't cast. But yeah, John Barrowman for Captain America. *nods*
Seriously, check him out:

Isn't he SO Captain America?!?!?! He is. *nods sagely* And he said at ComicCon when asked that he would love to do it, so yeah... *hoping so much*
And this gorgeous man can sing too (not that that has anything to do with Captain America, but God I love to listen to him sing!):
*passes out from his smokin' hotness*