On OSX I use Zooom2 to move my windows around with keyboard shortcuts and mouse motion. This operates in a very similar manner to Ubuntu, with the following difference:
On Zooom2, I have it set so holding down Shift + Cmd when the cursor is over a window and dragging the mouse moves said window. Shift + Alt + mouse move resizes.
On Ubuntu, window movement is achieved by holding Alt and clicking in a window, then dragging the mouse.
The clicking required in Ubuntu is fine when using a mouse, but I find it ends up being a bit of strain when using the trackpad - I miss OSX's no-click version.
Is there a way of customising the window moves so I don't have to actually click?