Dude, the Geforce3 isn't available yet, you can preorder tho. If you want here and now get a Geforce 2 Ultra. Currently, the fastest 3d card available. As far as what Geforce 3 card to buy, at first there will only be one model. Either card you buy, Elsa and creative labs are good brands.
You should get a geforce3 because it have a long list of new features that froses you in front of your screen engoying it's rocking graphics and it's light speed.
About the best card in the market, you have 4 good cards, the asus, the elsa gladiac 920, the leadtech geforce3 and the hercules 3d prophet3.
I advice you to get the 3d prophet3.
But creative is preparing a big surprise, and i think it will be a geforce3.
I would vote for the Elsa Ultra or GF3. Reason is Elsa has the best reputation in quality of their cards such as 2d sharpness. Now the Elsa Ultra can be have for less than $255.