@ Mystic majority if not all games today use SM3.0 and it makes hell of a difference, you don't need to argue about everything
Corsair value select ram X 2 isn't supported with asus A8N E, I made the same mistake, consider transcend or corsair xms which maybe double the cost
a 7600GT can play games fine at 1024*768, almost all games not all
FEAR shd be fine with soft shadows off, fine at 1024 and maybe fine at 1280*960 softshadows off, not sure of 1280, but these cards don't give a good gaming experience with too high settings
consider no less than 7900GT
spend more on card and less on cpu
conside Radeon 1900XT for arnd 30k if you can afford it
CLARIFICATION
for 17-22k in India you get a 256mb 7900GT, depending upon make, asus for maybe 19.5k approx, take an average of 19-20k for 7900GT,
7900GTX for 29.5k+tax and up, except xfx which is 38 and up, 7800GT for 17k, not worth it, 7800GTX and GT are outdated, not worth it, 7800GTX=7900GT in terms of performance(approximately), 7900GT takes less power
7600GT around 12.5-13k, actually regard it 13(+-100s)k for practical purposes, my frined bought a BIG about a month-two weeks ago for 13300, 6800GS was arnd 11k and 6600gt is around 7.5-8k maybe