Currently there are several DLL libraries shipped that are installed to the C:/Python27/Scripts/ directory. The awk/rsync/ssh executables are already prefixed with git-fat_ to avoid collisions. It would be a good idea to prefix the DLL libraries as well, so when there is an another package that also installs msys dlls it won't overwrite our files with some older versions that could cause issues.
Not yet sure on how to do that. A quick google search only found me a hackish solution like this: http://stackoverflow.com/a/3420626/623622