That's actually one thing I miss from Windows when I'm on Linux: Git for Windows is wonderful in my opinion. I don't know how to use Git on the command line (or rather, I'm not terribly comfortable with it). I don't use Git every day or even every week, so Git for Windows is a godsend to get me to actually commit things. Git on Linux is much, much more difficult for me.
There are Git GUIs for Linux as well. I don't use them, so I can't recommend anything personally, but I'm sure Google could turn up something useful :)
