Nvidia is pretty easy to set up in Feisty.
In your menu choose System > Administration > restricted Drivers Manager. (sudo rights required)
Simply enable the nvidia-driver and let it install Nvidia and set Nvidia in use
Restart X and the Nvidia Driver is set up for you 🙂
Now maybe you would like to do more with Nvidia, like using a gui to set up tv-out or maybe try different resolutions.
This can be done with a simple keystroke in your terminal: ‘nvidia-settings’.
For some reason this tool is not set up in the menu of Ubuntu Feisty 😦
So here is how to set this tool up in your menu:
Rightclick you menu and select: Edit Menus (or open alacarte in your terminal)
Select: Applications > System Tools
Select: +New Item
A Launcher Properties box pops up:
Name: NVIDIA X Server Settings
Comment: Configure NVIDIA X Server Settings
sudo mv /path/to/nvidia.png /usr/share/pixmaps/
This way the button is found in the default folder of Launcher Properties. (After clicking the no icon button)
Now this wonderful tool is set up in your menu and ready for use.