I\'m using msysgit running on Windows XP.
Tried Ctrl+V, Right click, Middle click, google... no luck.
If you click at the icon on the upper left corner, a drop-down menu will appear, and you can find the option to copy/paste from there.
console2 ( http://sourceforge.net/projects/console/ ) is my go to terminal front end.
it add great features like copy/paste, resizable windows, and tabs. you can also integrate as many "terminals" as you want into the app. i personally use cmd (the basic windows prompt), mingW/msysGit, and i have shortcuts for diving directly into the python and mysql interpreters.
the "shell" argument i use for git (on a win7 machine) is:
C:\Windows\SysWOW64\cmd.exe /c ""C:\Program Files (x86)\Git\bin\sh.exe" --login -i"
The way I do this is to hold Alt then press Space, then E and finally P.
On Windows Alt jumps to the window menu, Space opens it, E selects Edit and P executes the Paste command.
Get these correct in succession and you can paste a snippet in under 2 seconds.
Aside from using the edit menu commands, you can directly paste into the git bash window using the keyboard shortcut, Insert.
COPY:Click the title bar, choose mark, then select the content you want to copy. PASTE: Copy what you want to past, focus on the bash, hit the insert key on the keyboard.
Get Console2. You configure it to do it multiple different ways. Works with bash or Windows command prompts.