I've configured my Ubuntu to a more Mac-like interface, including the Global Menu (in the top bar), the dock (Cairo) and the Close/min/max buttons on the windows.

The browser is Epiphany (as it's Gnome and therefore works with the Global menu). All the icons in the dock are pretty self explanatory, except that the one for Skype (on Mac) launches Pidgin.

I'm pretty happy with it as it is, despite my unhealthy addiction to tweaking.

PS - Please ignore my misspelling of Nietzsche in the search box; I was using Google as a dictionary to find the correct spelling.