Question How strong power supply should i buy?

[TheMarkoEnderman]

Ok guys i have this specifications

Mobo: Asus crosshair III formula
Graphics: msi radeon hd 7750
Procesor: Phenom II x4 965 BE
3 fans 12v
Hard disk: wd 320gb 7200rpm
Ram : 8gb ddr3

Any ultra cheap power supply recommendation that will run this system, also i am from Serbia so pls suggest some good power supply that is available in my country

 

[Vic 40]

Corsair CX 450watt.