The LaTeX version available for Mac is MacTeX. You can find the installation information from below. Mac OS - http://www.tug.org/mactex/; Linux I have installed the vim-latex-preview plugin by using vim pathogen. Follow.
You can then start vim and install the plugins using the command:PlugInstall On Mac OSX you can look in the System Preferences > Keyboard > Modifier.
My Vim comes with the OS X system and is located at /usr/share/vim/vim73. According to the instruction, I created a folder as ~/.vim and unzip the source file into.