Installing git on Windows: Git Bash Here or git-cheetah shell extension?

I'm installing Git on Windows XP. During the setup, the installer asks whether I want:

1: Context menu entries: "Git Bash Here" (and the "Git GUI Here" option)

or

2: "git-cheetah shell extension (32-bit only)"

Basically, which should I do? I can't do both.

More specifically, what is the most commonly used version? Is the Git Bash to开发者_运维百科ol the same as the shell extension?

git bash here will give you a console window with access to git commands, shell extension will give you right click menu access to git commands creating an environment similar to TortoiseSVN and such.