I’ll give Unity a go one day, but for now I’m persisting with Gnome 2 on my work PC, because I have it set up with the GUI staying out of my way as much as possible, so for now it is the path of least annoyance.
At least now that I have worked out how to fix one of Ubuntu’s annoying allusions to OS X of having Gnome position the minimize, maximize and close buttons on the left corner of window borders. Like most people, I still have to use Windows, and I see no need to have to mentally acclimatize to this arbitrary difference between the 2 operating systems I regularly use.
To change the position of the window controls to the right, run the Configuration Editor by pressing Alt-F2 then typing gconf-editor.
Find the button_layout setting.
Change the value to: