It has been a while since I last took a look at the Microsoft Powertoys site, but there are a few new ones up there.
Two of the the 3 latest toys seem to be directed at digital photographers. From the powertoys site:
Color Control Panel Applet
Professional-level photographers and designers know that getting consistent, accurate color from file to screen to print and beyond is a requirement for great results. This new tool helps you manage Windows color settings in one place. Download or learn more.
RAW Image Thumbnailer and Viewer
Are you a serious photographer? Now you can organize and work with digital RAW files in Windows Explorer (much as you can with JPEG images). This tool provides thumbnails, previews, printing, and metadata display for RAW images. Download or learn more.
I am definately a fan of the classic powertoys like TweakUI.
Now if only we had a toy that would let us change the background on multiple monitors...