I have had Photoshop CS3 for a long time now. I recently installed ML on my 60D and was playing around with my camera and soon discovered that CS3 doesn’t do focus stacking so downloaded the trials of Zerene and Helicon. Lately my CS3 seems to be crashing once in a while so I was debating if I should get Zerene or Helicon and keep CS3 or get a newer version of PS. Does the newest version of LR do macro focus stacking? If so, does it do a good job of it?
FWIW, I typically only make adjustments to layers, curves and a bit of sharpening. Occasionally I switch an image to B&W. So if I went with LR I think it'd be fine for my typical workflow that I do.

