for opensuse go here:
http://en.opensuse.org/NVIDIA
kernel-PAE-devel is for 64bit installs I believe.
If you have 10.3 one click install is the best option. Otherwise rpm packages offer the benefit of a very easy upgrade for bugfixes in the driver. The shell script Drakeo recommends should work too but upgrading would be difficult as newer versions of the driver appear. Previously, I should have explained that source code from nvidia is not available to compile and if it was I would still opt for a package someone else made.