graphic card for Discovery studio

Hi,
I would like to buy a good graphic card for my PC (under linux) to use DiscoveryStudio. The graphic cards suggested in the "system requirements" in accelrys DS home page are no up to date ....Do you think that a Nvidia GeForce 9800GTX+ DK/HTDI/512M will be correct ? Could you give me some other graphic card features (under 9800 for example) that will be compatible with DS, please ?
Thanks.