Is it possible to reconcile the evolution theory with Buddhism? Is it possible to reconcile the evolution theory with Buddhism, or they are 2 things that simply cannot go along? In other words you have to choose one.
I'm really not sure what one has to do with the other.  The Buddha taught the path leading to the cessation of suffering.  Evolutionary theory explains what happens through the interplay of a given species and its surroundings.  I think the example set by the Dalai Lama is very instructive in demonstrating how a Buddhist should approach science.  He strongly embraces what science has to teach us about reality - which is what Buddhism seeks to do in it's own way.  He even goes so far as to say that if science (and by science, I understand him to mean rigorous testing and reproducible evidence) could prove an aspect of Buddhism teaching false, a Buddhist would have to side with science.  I'm really don't see anything in evolution that would impinge on the dharma.