GYMS! Yoga! Pilates! (Belgrade)

Dear all,

I am interested in finding a gym, preferably walking distance from the city center (I live near the train station, in Savski Venac). Is there somewhere with good, clean, modern facilities, maybe yoga and pilates classes? I'm looking for physical movement in an effort to counteract the seasonal affective blues. Oh, and it would be good if it was semi-reasonably priced, but if it's truly great, I can pay a little more.

Any tips would be greatly appreciated.

Ciao,

Lily