I've written a patch for emacs that adds an new font face called 'fringe-inactive'. This allows you to have two different faces for the fringe - one shown when the window is active, the other when the window is inactive. I use 'dark red' for the background of the active face. This makes it a lot easier to keep track of where your cursor actually is when you have many windows open.
To apply the patch, checkout
the cvs source and my patch. Apply the patch with
'patch -p1 < emacsfocus.patch', then follow the instructions to build and install emacs.
