Best And Economical Pc Gaming configuration !!!

Hi guys I am a new member here. I have been planning to buy a new assembled "Gaming" Pc for a month. And the prices have been fluctuating ever since. M main goal for a Pc is complete campatability for all the new generation of games caming nowdays.
My another goal is to avoid upgarading the components for another 2-3 years. So FOR ALL THE COMPUTER GURUS !PLZ HELP ME!


Here is the Configuration I have put up
Total limit of cost : 50,000 INR
Place : Bangalore
Type : Assembled

Configuration:
Processor : Intel Quad Core Q6600 2.4GHZ..Rs.10675
Motherboard : Intel DG33FB......................Rs.4500
RAM : Trancend 2GB DDR2........................Rs.1650
HDD : Western Digital 250GB.....................Rs.2750
Graphics Card : GeForce 8800 GT 512mb.....Rs.14200
Cabinet : Zebratronics.............................N\A
SMPS : Powersafe Silver 500W..................N\A
DVD Witer : Sony....................................Rs.1300
Monitor : 19" Samsung TFT.......................Rs.8525
Keyboard & Mouse : Logitech Combo...........Rs.660
UPS : Mercury 600...................................Rs.1575
Speakers : Creative 2.1.............................Rs.1050

1. IF You guys have any suggesstions about the hardware compatibility or conflicts please help me.
2. My vendor also says that Intel DG33FB is the best selling Motherboard in Intel Classic Series (PLZ Give me suggessions)
3. About the Graphics card which is the best in 8800 series available in India.


Thanx in advance

dont make too many topics. Related to gaming hence keeping here