Graphics card - too many

[okimgone]

Looking to buy a eVGA GeForce GTX 660 Superclocked Graphics card - 2 GB - GDDR5 SDRAM located here

Spoiler

http://www.google.co.uk/products/catalog?q=gtx+660+2gb&um=1&ie=UTF-8&cid=9831564733724787776&sa=X&ei=jcP-UIqkAcPT0QWluYCADQ&ved=0CGcQ8wIwAA

SPECS

Would I need to upgrade my power supply? I am looking for the best graphics card I can get without upgrading power supply for around £200 ($300).

Processor (CPU) Intel® Core™i7 Quad Core Processor i7-3770K (3.5GHz) 8MB Cache

Motherboard: ASUS® MAXIMUS V GENE: M-ATX, INTEL Z77 ROG MOTHERBOARD

Memory (RAM): 32GB KINGSTON HYPERX BEAST DUAL-DDR3 1866MHz X.M.P (4 x 8GB KIT)

Graphics Card: 1GB NVIDIA GEFORCE 210 - DVI, HDMI, VGA

Power Supply: 450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan

Thank you and I <3 this community, can learn so much :0

 

[EzioAs]

You can buy a $60-80 psu like the Antec VP-450, XFX Pro Series 450W, Corsair TX550M, SeaSonic S12II 520, XFX Pro Series 550W, Antec High Current Gamer 620M, Corsair TX650 V2 and still be able to buy a GTX 660 (they're around $220 now). That's my recommendation because I seriously don't trust that power supply you have right now.