Here's a link that will help you get started messing around with your Summit, if you want to. It's all free. Just a little work on your part. http://www.laptopgpsworld.com/914-how-install-mapsource-add-maps-mobile-pc
Don't be put off by that title. That link will tell you how to get MapSource installed on your computer and once it's installed you can use the maps on more than just Mobile PC. In your case you mostly just want to use MapSource for viewing your waypoints anyway. Once you have a recent version of MapSource installed on your PC you can do two things.
You can upload waypoints from your Summit into MapSource and edit them to add additional detail.
With your waypoints loaded in MapSource, you can ask MapSource to let you view them in Google Earth. That requires that you download Google Earth
and install it on the PC, but it's also free. If you ask MapSource to let you view your waypoints in Google Earth, it will launch Google Earth and transfer the waypoints to a Temporary Places folder in Google Earth and display them.
Or you can save the waypoints into a .GPX file from MapSource. Then, whenever you want to view them in Google Earth, you can launch Google Earth and drag/drop the .GPX file onto the planet.
Once you have the waypoints set up the way you want, you can permanently save them in your My Places folder in Google Earth so all you need to do to view them is launch Google Earth.
I'm not sure what sort of printing capabilities are available in Google Earth. I don't do much with paper any more.
If you need help with any of this, just ask. For the Garmin stuff, like MapSource and nroute, it would be better if you ask in the Garmin Mobile PC section
so more of the Garmin users will be able to assist with help and other ideas.
You can also ask about maps over there. It's not difficult to get free maps, including topographic maps, for many parts of the world. There are some excellent free topos for all of Canada. More areas of the United States are getting free topo coverage now, too.