The template strategy combined with electrodeposition techniques have been used to fabricate arrays of nanowires of magnetic metals and multilayers in the cylindrical pores of track-etched polymer membranes, The giant magnetoresistance effects have been investigated in two different types of multilayered nanowires systems: Co/Cu and Ni80Fe20/Cu. In addition, a comparative study of the magnetic properties of sub-micron Ni, Co, Fe and Ni80Fe20 wires is made by means of anisotropic magnetoresistance and magnetization experiments.