Just installed Topo USA 4.0 from Delorme and this is a pretty cool software. You can generate standard topo maps for the whole US in a few mouse clicks. My favorite feature is the 3D maps generation in both shaded and real 3D format. Gives you a pretty good idea of the terrain relief. For instance, here is a shaded relief map of lake Perris in Perris California, just next to Riverside.

© 2002 DeLorme (www.delorme.com) Topo USA®