For older machines I'd recommend Mate. It's a fork of old Gnome 2, so it got a lot more polish back on the day, even though some of it bit rotted away. It's st

For older machines I'd recommend Mate. It's a fork of old Gnome 2, so it got a lot more polish back on the day, even though some of it bit rotted away. It's still a very nice desktop and you can combine it with Compiz if you want to have some fun.