Chemos Software - BALANCER - Windows shareware for equation prediction and balancing. Also does empirical formula and mass/mole/volume calculations. - http://www.chemos.co.uk
Chemical Equations - Windows program for balancing equations and conducting chemical calculations. Trial and purchase versions available. - http://www.nobelsoftware.com
Chemical Equation Expert - Windows software to balance and calculate chemical equations. Demo and ordering information available. - http://www.educationsoft.net/
ChemBalance - A windows program for balancing chemical equations. - http://www.etiumsoft.com/chemstudio.htm