Bossi’s Tweak Site
For those of you that are feeling the need to modify my config, i've stumbled across a really good website that will help simplify the process. This is by no means new information, but Bossi, a common poster on the Complexity forums created a guide with a list of common cvar's and exactly what effect they have on your frame-rate. Remember, my config was made for my system specifications, so it would be a good idea to look it over and see if you can make any further adjustments to ramp it up according to your system.
Among other things, he created a few system guides to help get your game running as fast as possible.
You can check out Bossi's site by clicking here.
His fps command guide can be found here.