The software DYNAFIT [Kuzmic, P. (1996) Anal. Biochem. 237, 260-273]
is useful for the simulation and analysis of complex biochemical
kinetics and equilibria.
An online bibliography of research articles that reference DYNAFIT was
http://www.biokin.com/dynafit/biblio.html [101 references]
Looking at these papers will give you an idea what DYNAFIT is good at.
The software comes with a free, unrestricted academic license.
- Petr Kuzmic