You forgot one of the most important things....The Operating System, Win9x/ME/2k/XP etc..
First thing you always want to do is disable programs running in your background when benchmarking. Virus, AOL, cdtrays, realplayer, and so forth.
Update your video card drivers, I reccommend getting them from the MSI's websight instead of Nvidia's. Make sure you uninstall your old drivers prior to installing newer ones.
For overclocking head over to <A HREF="http://www.geforcetweak.com" target="_new">GeforceTweak</A>. It is a useful utility and it will allow overclocking without you having to manually play with the registry settings.
Anything goes when it comes to hoes cuz pimpin aint easy.