You do not need the make
part, only make install
and it needs to be done as root. And you only need to (initially, and hopefully
) edit 1 file. Needless to say, however, that the instructions are all in the README file (both txt and pdf versions are available from the same page you download the drivers) and are extremely easy to follow.
But yeah, you should always
use the source, IMO, for stuff like this. For example, the drivers available for Mandy8.2 are for stock kernels only, so if you have, for whatever reason, compiled you own kernel, the Mandy 8.2 rpm drivers won't work. Also, if you compile your own kernel after installing your NVidia drivers, the RPM versions won't work anymore (same reason as above), but you can always quickly recompile your source drivers.