You can do the automated creation of duplicate background layers etc by creating it as an action. You need to record it in the 'actions' tab, if its not showing hit alt+F9 to preview the window. CS5 does the rotation preview in its raw conversion, but in the document it will just show the marquee with a certain level of opacity (which you can select). If you need a preview, you could always just finish the crop, then ctrl+z if you don't like it ;) lol.