I can't think of any other keyboard-shortcut that would cause me any trouble, so I think completely customisable shortcuts are not needed. But as a photojournalist the IPTC "Save ->" would be a real treat.
The best would be letters that are not specifically German, French, Swedish and that are not used for other important functions.
What about "Command-Shift-Y" and "Command-Shift-B" for "<-Save" and "Save->" , as they are quite close to Command-Shift-C and V right below for "Copy" and "Paste"
I guess many people could live with the loss of the "Burn to CD" shortcut, but when you are writing individual captions for large numbers of pictures out in the field with the notebook on your lap it is so much faster if you don't have to mouse-click the buttons.
That would be an tremendous improvement for us people with German or other keyboards, as "[" and "]" do not work for us.
Thanks in advance!