You may have noticed that more and more real estate photographers who post in the PFRE photo forum describe the technique they used as blending a flash layer with an ambient layer (like anjie b). Also, you will frequently see this technique used in winning photos in the PFRE monthly photo contest (like Anders Carlson). There is much more of this going on than there was just a few years ago. That is, because if you shoot a flash image and an ambient image, you can quickly combine these two in Photoshop to get the best of both.
What's The Motivation For This Technique?
How Do You Use This Technique?
If you are not practiced in using Photoshop layers, this may seem complex but once you get familiar with using Photoshop layers it can be quite fast.