try a different distribution. fedora core isnt all that great. i'd rather use windows.
okay its not THAT bad, but try debian, or ubuntu, then you'll be able to just do this to install the drivers.
apt-get install module-assistant nvidia-kernel-common
m-a prepare
m-a auto-install nvidia
apt-get install nvidia-glx
dpkg-reconfigure xserver-x[org or free86]
disable anything having to do with DRI and make sure that glx is enabled, and glcore enabled. then it should work.
edit: and if you want to overclock your video card, you can apt-get nvclock
i think its nvclock ... someone correct me if im wrong. i'd apt-cache search but im at work on my powerbook.
oh and apt-get nvidia-settings if you want to adjust anti aliasing and all that jazz