Examples

• gmarik's vimrc
• mutewinter's Vim Config of Champions
• vimified - Ultimate, kick-ass VIM configuration on top of Vundle
• ivim - Vim Distribution of Xiao-Ou Zhang Using Vundle
• aaronjensen's Vim Config with simple setup script
• fisa-vim-config - lot of python, autocompletition, fuzzy finder, class browser, debugger, ...
• moshen's vim config - relatively simple vundle config with a more robust setup script
• dd-vim DD Vim Configuration - a good starting point to make your own Vim configuration
• dotvim - Drop in vim configuration
• Sibin's vimrc - Uses the environment variable $VIM, making it more portable. The other examples (i.e. above) weren't working on the Windows machine I use.
• timss' vimconf - Extensive vimrc with easy install and -everything- in the vimrc is explained!
• Auto Installing Vundle From Your Vimrc

If you have an interesting example, feel free to add link to your config.