These are pic's from some of the games I play that I changed to widescreen format;

I found most of my widescreen tweaks at Widescreen Gaming Forums: http://www.widescreengamingforum.com/phpBB2/index.php and at TigerDave's: http://www.tigerdave.com/wgl/ both have lots of info on most of the current games that are either native out of the box widescreen or can be tweaked to widescreen format.