I must say this has been the most boring product launch in a while. Essentially the GeForce 9800 GT is the same as the GeForce 8800 GT. Same performance, same specs, same GPU. The only difference is the 9 instead of the 8 in the product name, Purevideo HD and support for Hybrid Power. Are these worth making a new product? No. But we have to admit that the GeForce 9800 GT does fit in the NVIDIA product stack at this point, GeForce 9 has not been about innovation anyway so far. Nevertheless the card comes at an attractive price and offers performance to play all of today's games just fine.
Zotac added a custom-colored PCB and higher clocks to their GeForce 9800 GT Amp! Edition to make this product at least a bit more interesting. The higher clocks and high overclocking potential make this product certainly more useful, but you have to pay a price premium for it. Unless you need the GeForce 9 Series features (you probably don't), stick with the GeForce 8800 GT and save a few dollars, unless the price difference is only $5 or $10 to get a GF9 card.