[cholantesh]

GitKraken[1] was mentioned in the comments on the OP. It seems quite nice, though I haven't had a chance to play with it.

1: http://www.gitkraken.com/

[timlyo]

Yeah, I mentioned it ;)

It's pretty good, although I mostly use it for getting a pretty overview of my commit history.

The stage and commit interface is quite nice.