[scottmey]

I'm an OSX user, but I just created a repository (on Github) and anytime I add new plugins/configurations I try to commit those changes...as I spent a good deal of time customizing my setup at one point.

You could create one for Windows & one for Linux.

[roryokane]

Yes, I also store my dotfiles in GitHub – https://github.com/roryokane/dotvim. To make installation on other computers easier, in the README, I list the shell commands to install the configuration for each OS. Installing my config is just a matter of copying and pasting those commands, and waiting for each command to finish.

[nXqd]

Amix vimrc does pretty goob job at making it work cross platforms. https://github.com/amix/vimrc, you guys should check this out.