<pre>wget http://developer.download.nvidia.com/compute/cuda/$CUDA_MAJOR_VERSION/$CUDA_MINOR_VERSION/installers/cuda_5.0.35_$(Linux|Windows)_$ARCH_$IMG.run

chmod +x cuda_*.run

</pre>

We only need the developer drivers. Ensure that the drivers install correctly. Note that it needs to run as root. The cuda dev drivers are already installed in some AMIs (for example the CentOS-GPU image).