1= CS:S Mouse Optimization Guide http://counterstrikesourcetactics.blogspot.com/2008/02/css-mouse-optimization-guide.html
2= counter strike source multiplayer networking explained http://counterstrikesourcetactics.blogspot.com/2010_06_01_archive.html
3= a dutch forum with some new benchmark settings for multicore rendering http://www.gamelux.nl/topics/79321-css-config-benchmark/
4= CSS Update: FAQs and Possible Fixes for Common Bugs http://forums.steampowered.com/forums/showthread.php?t=1319841
hope i help a bunch ^^