OMG! Ubuntu! posted a guide about installing the Nouveau graphics drivers for NVidia in Ubuntu
Longing to install and try out the open-source accelerated 'Nouveau' driver in Ubuntu 10.04 or 10.10? There's a guide that just might help...How to install Nouveau graphics drivers for NVidia in Ubuntu
Nouveau is a project tasked with creating Open Source 3D drivers for NVidia cards. Whilst they don't (yet) provide anywhere near the same level of performance as the proprietary drivers most folks use they are a free and capable drop-in.
