www.Tweakguides.com
Half Life 2 Tweak Guide - some of the settings will apply to FF
http://www.tweakguides.com/HL2_1.html
ATI Catalyst Tweak Guide
http://www.tweakguides.com/ATICAT_1.html
Nvidia Forceware Tweak Guide
http://www.tweakguides.com/NVFORCE_1.html
The Gamer's Graphics & Display Settings Guide
http://www.tweakguides.com/Graphics_1.html
TweakGuides Tweaking Companion (TGTC) is the complete system optimization guide for Windows users. Designed for novice and advanced users alike, it is written in plain English to help you genuinely understand all aspects of Windows and your PC.
http://www.tweakguides.com/TGTC.html
Tweak Guides Forums
http://forums.tweakguides.com/index.php