Gym, sport, (Jerusalem)

Hi

I ve just moved to Jerusalem for work and trying to settle in here. I would like to ask you about the gyms here, I found few with good recommendation, one is in Malha Mall and one in Edmond J. Safra Campus (Hebrew university), any information? (and i do not know if they even let me in the university if i am not student). Any other references? i live in Old jerusalem, so the closer the better.
And Iif anyone would like to grab some drinks :) just contact me.

Thanks for help

Peter