Hi Muscles,

I've heard that www.davidgym.ch is the place where the hardcore guys and visiting pros go. You asked about somewhere near the central train station, so I'd suggest you check out www.mcfit.ch, which has a pretty decent weight training room (which is where I'm heading right after this message).

For supplements, check out this thread, but actually this shop is the place your looking for.

Let us know how you get on.

Cheers,
Diem