I edited all of my images from a photoshoot in Ubuntu 12.04 to determine if it is possible for a professional photographer to create a workflow entirely in Linux. It required both open source and closed source software, but I was able to do it all with native Linux applications. There is no dual booting, no WINE, and no virtual machines used in this workflow.
Finally, we get to the fun stuff. Your monitor has been properly calibrated, you have downloaded all of your photos (that follow a proper naming convention), and all the necessary metadata is stored inside them. Now you can start viewing your work and deciding which photos will be edited. In comes Corel Aftershot Pro.