We obtain integral representations for the wave functions of Calogero-
type systems, corresponding to the finite-dimensional Lie algebras, us
ing exact evaluation of the path integral. We generalize these systems
to the case of the Kac-Moody algebras and observe the connection of t
hem with the two-dimensional Yang-Mills theory. We point out that the
Calogero-Moser model and the models of Calogero-type like the Sutherla
nd one can be obtained either classically by some reduction from two-d
imensional Yang-Mills theory with appropriate sources or even at quant
um level by taking some scaling limit. We investigate the large-k limi
t and observe a relation with the Generalized Kontsevich Model.