Which is best available configuration in market with low price ??

There is no such thing as a cheap computer with good performance. If you want a good cheap computer... buy a second hand one. That is the only way you will get it cheap. Cheap computers are made of cheap parts and will not perform. They are only good for word processing. A real good computer is one you build yourself with all the best parts. The easiest way to do it is to go to a computer shop... buy a new box... motherboard and CPU and ask them to install the motherboard in the box as part of the deal. Choose also which power supply you want to have. The cheap basic one will not be powerful enough to run a powerful video card. Once you have that... the rest is easy. Choose your video card... sound card... how much ram you want to have... how big a hard disk you want... get a combo DVD/CD burner... and put it all in. Don't get a motherboard with the video and sound on board. Those are cheap options.

i prefer AMD since i am using one.I use AMD because --comparatively cheap --high performance --high stabilty --greater support for gaming i recommned AMD FX 64 bit computing.It has many advantage over intel pentium 4 processors.but i heard that intel pentium duo core2 is much better than other precedures and a like performance with AMD 64.so i f you are going to buy a new computer either you go for AMD FX 64 or Pentium 4 Duo core 2. thank you!

AMD, Good for any one in this world, I am preferring it to you because i have one super AMD here.