I want to buy GeForce 6600 non GT for myself. I'm looking for good brand. Is Gainward available here in India. I asked my dealer he was offering me BIG 256MB GF 6600 for Rs. 7000 and Asus GF 6600 for Rs. 11,000. Why such a huge differance between these two brands. Plz recommend me some other good brands apart from BIG and XFX. Also if possible give me apporx price.