600gs

Which PSU should be ok for the following config? My usecase is such, that the system is Always On(24*7). Component|Make| Processor|Intel Core i5 2500k| Motherboard|MSI P67A-GD55| RAM|G.Skill Ripjaws F3-12800CL9D-4GBRL| Graphic Card|MSI GTX560 Ti Twin Frozer II | Case|690 II Black -Advanced...