Denis you make me want to return to work with a Mac, but I will still wait until the next generation of Powermacs, which won't be soon I think. Meanwhie I will try Iridient product with some friends' computers and compare. There is a very straight relation between detail and artifacts. Mamiya DPS seems to have the least artifacts and detail. Photoshop and Silkypix both manage to get more detail but you have to tweak the programs to remove artifacts too. Puff... too many programs, I also would like to have a single program workflow, and Lightroom seemed fine (I tried on a mac for some weeks). On the other hand I also find myself shooting tethered 90% of the time, even with fashion shots, so if only Mamiya would be better...anyway...I suppose we cannot ask so much for being the first version.