got a job offer in Frankfurt - need information

Hi All,

I have got a job offer to work in Frankfurt with my company's branch there (it will be an inter company transfer).

Would anybody be able to advise me on the following please?

-Income tax rates / social security / insurance costs
-housing costs
-going out once a week for drinks / clubbing :)
-how is Frankfurt like to live in?

Thanks!

Cheers,
Akshay