There are still many open questions about the properties of galactic magnetic fields. One way to make progress in understanding these issues is to perform systematic investigations of a large number of galaxies. We present results obtained using polarization data from a recent WSRT radio continuum survey of a subsample of SINGS galaxies. Common characteristics of the targeted galaxies are shown, together with a description of a global magnetic field geometry which successfully reproduces the observed patterns. An emphasis is placed on future progress which can be made, using the new generation of radio telescopes which are currently being designed and built.