Hi Damien,
I am trying to mask some photos accurately. Sue Morris linked me to your tutorial about holding down shift while you use the brush tool, but I don't know how to turn that into a mask. When I add a layer and do select and mask, you can't hold down the shift. The shift key works when you use a paint brush, but how do you make that a selection or a mask? I apologize if I sound like a dolt; learning PS is not easy for this middle aged gal.