usb stick internet in Germany

I will be moving in Germany in a couple of weeks. For the first 2-3 month i will not be able to have a decent internet connection. I will need to use usb stick internet.
I was wandering if someone can help me out a bit in choosing a provider.
What I need is to be prepay,decent speed,and if possible without traffic limit since I will need to watch football(soccer) streaming.
My German is not good enough to simply google it.:naughty:
Thank you for your help.

PS I will be in Nordrhein-Westfalen