I just watched this
YouTube video on CS5's new blend modes - 'Subtract' and 'Divide'. Thought I'd try it out. This one began with the 'Subtract' blend mode, then added a few layers and finished up in Lightroom 3 Beta 2.
Mike.
Before
[attachment=22324:DSCF15097.jpg]
Hiding
[attachment=22297:DSCF15097_Edit.jpg]