[Captain Ahab Jr]

I have and only last week and I got the job...

Be yourself, don't dress up as a hipster, sell yourself by explaining what you see your key skills are give examples by describing relevant past experience and explain how you see this can help them.

You have something they want but can't buy by employing a young guy and don't under sell yourself in fact go for the opposite approach and state that x amount of $ has been spent over the years for my resume to look like it does.

If they have to big an ego and or too arrogantfor them to see the value you will bring not just with you doing the job but by how much the younger guys can learn from you then its not a company you would probably want to work for so their loss not yours.

Don't be afraid to ask plenty of question the more you can work out what it is exactly they are looking for the more you can target which parts of your skills and experience to highlight.