Well, that's a dilemma. But if you don't actually have the geforce in your possession, my advice would be to not get it at all. Grab a Radeon from somewhere and you'll be much happier.
Of course, I'm doing exactly the opposite: I had already installed a geforce last summer, so now I'm sticking with Jaguar + GeForce for the time being (just because I'm too stubborn to downgrade to the Rage 128).
But with every day that goes by, my resistance to plunking down the cash for a Radeon dwindles....