Courses for Molecular Modeling?
Someday I was wondering as you are doing but  I think that now my confusion has lessened considerably after talking with experts in the field and enrolling in a master program of pharmaceutical chemistry and drug design.    

Different kinds of simulations can be called modelling of cellular processes. The first are the rules of systems biology and the second are the rules of chemistry or more fundamentally, quantum chemistry. 

An example of systems biology is the simulation of the heart muscle fiber. a single cell, contractility as a function of the different ions concentrations, K, Ca, Cl, Na, etc. 

The rules of quantum mechanics when applied to systems of atoms and molecules yields quantum chemistry. Quantum chemistry can calculate the tendency of a certain chemical reaction a function of the electron density and energy in certain regions. Molecular Mechanics and Molecular dynamics are more convenient when simulating bigger systems, larger number of atoms and molecules. With large number of molecules statistical mechanics must be taken into account to realistically simulate the relative population of molecules that have a certain energy.

In you question, I don't think that analytical chemistry has any thing to with computer simulation of cellular processes. From the the disciplines you outlined I thank that you are more interested in Quantum chemistry/Molecular mechanics/Molecular dynamics than that of systems biology. In my opinion you have to focus on: Physical chemistry, quantum chemistry, statistical thermodynamics,  Drug discovery and design. Also, In order to understand molecular dynamics you must have a background in motion laws of newton. 

Occasionally you will need to gain a background in some specific points but, however, mastering the basics of the disciplines I mentioned will give you a comfortable platform from which you can move to your target easily. 

Regards.