^^No, I din't mean 8600GT. I told him to buy 8400GS coz it's available for Rs.2000.
Now say in november or december 8800GT prices come down Rs.2500. So in two cards he can save 5000-2000=3000
Two 9600gso will perform better any day than a single or even two 8600Gt.
You have suggested him to buy crossfire mobo's & ati cards which is a very good suggestion.
But he haven't mentioned his budget so It's pretty hard to find what he really wants.