I have tested Photo Sledgehammer software and I had to say that "It really works". It is shareware and it can downloaded here www.softcolor.biz I use my Nokia N90 as my digital camera and with N90 there is "blue cast" in photos which are taken indoors. Before I have use Paint Shop pro to (curves/one step fix) to correct these problems. But sledgehammer fix probles much easier

You might also look into Color Pilot at http://www.colorpilot.com They have a whole host of different programs and the Color Pilot program is very impressive!