Thinking about organising some partys. To get it done, we'd need a decent venue to occomodate people and get a good vibe.

Spec:
Big room to move a large(ish) sound system into.
As much room as possible! :P
Not really bothered about appearance/classyness/mould/missing walls.
Not too far from sheff city center.
A bar isn't important.

Does anyone know of suitable venues?