Has anybody found a decent solution to this? Custom keyboard shortcuts (as defined in System Preferences > Keyboard) don't work for any dynamic menus like Compress XX items or (new in Lion) New Folder with Selection (XX items) because they add the number of files selected after them.
Are there undocumented wildcards for keyboard shortcuts?
Unlike Compress, New Folder with Selection (XX items) does have a default keyboard shortcut, but there still doesn't seem to be a way to change it.