CPU- FX 8350(oc3d to 4.6 GHz) = 270 watt (read article here http://techreport.com/review/23750/amd-fx-8350-processor-reviewed/4)
CPU cooler- Corsair H100i = 20 watt
GPU- Sapphire r9 280x VAPOR-X = 374 watt max consumption (read arcticle here: http://www.techpowerup.com/reviews/Gigabyte/R9_280X_OC/24.html)
Ram- Kingston HyperX Blue 1600MHz = 10-20 watt
SSD- Kingston V300 120GB = 5 watt
HDD- Western Digital Caviar Black = 10 watt
Case- Cooler Master 690 II Advanced
fan optical drive etc etc = 30 watt.
well, that's all 729 watt..
so, at least you'll need 800 watt PSU to run your system..