Suitable PSU for the nVidia geforce GTX 560Ti ? i have zebronics 600w platinum series will dis wrk?

help!! pls i am gonna buy a new graphic card i.e., gtx 560 ti , i want to knw which will be a suitable power supply unit for this card ?? my pc config is Intel core i5, board is gigabyte ga p55a ud3r, 4gb ddr3 ram and at present im using a zebronics platinum series 600w psu .. will dat b sufficent for gtx 560 ti and present graphic card im usin is geforce 8600 gt !!