Suggestions for Graphic Card for my PC

Please Suggest a Graphic Card for my PC???

Hi Everyone,

I want to purchase a new graphic card for my PC.
My Current Config is :
Asus P5G41C-M LX MOTHERBOARD
2GB DDR3 Transcend RAM
Intel Core 2 Duo E7500 2.93 Ghz CPU
In-Built Cabinet Power Suply of 200-240V
My current OS is Windows 7 64 bit

My budget is around Rs. 5000 including SMPS as 200-240V SMPS will not be sufficient
I want a good graphic card and also hope that my Mother Board doesn't get fried in 6 months after putting the GC.
Also I prefer ATI to NVidia.