What is my best option for repairing the broken glass?

I recently purchased an Ipod Touch 4th Generation. I've had it for barely a month.

Yesterday I was sitting down and the iPod fell out of my pocket onto the Stone bench I was sitting on. It couldn't have been a 6 inch drop. Now I have a 2 inch crack on the bottom of the screen with some glass chipped off. I'm very disappointed about this because I was being extra careful until I could buy case. :(

Anyways. I'm willing to try and do it myself. But if anyone know's how much Apple would charge, perhaps I'd go that route. Unfortunately there is no Apple store in Berlin.

-aaron