For those going to Berlin... Its pretty cool, but MASSIVE. Big like u cant imagine. It took 45 mins on the train from the airpost to out hotel. I would suggest you get a 24/48 hours transport pass. The transport system however is AMAZING. Trains all the time, and all night. If i were you i would eat, drink and shop in the Hachsher Market area (on the main tainline). Loads of good shops and places to eat and drink... anymore info you need, just let me know...
where abouts are you staying? Hachsher Market is the area to drink and club and stuff i reckon. We spent most of our time there. Get maps and stuff from Tourist info at the TV tower. was really helpful.
I'm quite looking forward to it will sort lifts for you through the week for the airport and all that.
Finding out where the hospital is might b a good idea....I have a feeling theres gona be some serious states off this trip