There is a lot to say for powerful strobes. But always remember that now a days cameras have no problem at all with ISO200-400-800 or even 1600. Alle are perfectly usable in a studio setting. So although a 1000W strobe with spotlight sounds awesome in the studio it's unusable because even on the lowest setting you will break the X-sync which prevents most studio strobes to shoot above 1/125 of a second.