I have a couple rooms where the old plaster ceilings are stained, cracked, etc. - I am thinking the easiest thing to do might be to just have a layer of drywall put over them. (note - yes I have fixed the roof leak that led to the stains etc.) There's no cove molding or anything to worry about; I think the half inch less headroom would not be an issue. I'll probably have pros do it and just do the painting myself. Just wondering if anyone has done this, did it work OK, etc.