There's also a more difficult way to do it, but it's worked for me (I'm a gamer). Go to nVidia's website:
http://www.nvidia.com/Download/index.aspx?lang=en-us
Enter the card you have - There should be a link near the bottom of the page to some file like
NVIDIA-Linux-x86_64-100.14.19-pkg2.run
Download this and put it in your home directory: /home/yourusername
Right Click on the file in File Manager and select Properties from the popup menu, and in the Permissions tab, check the box marked "is executable"

Then from the main SuSE menu, select log out, end current session

Then from the logon screen, at the bottom left select System and Console Login. This way you will come into a text mode logon for SuSE. Login as root with your password, then type

cd /home/yourusername

then type

./NVIDIA-Linux-x86_64-100.14.19-pkg2.run

This will run the package and install the driver. Tell it you want to compile your own version of the driver, and you want to install the 32-bit compatibility libraries (if it asks) and to install the driver automatically.

Of course, the easiest way is to do it through YaST as geoff said!!

Patti