No need to buy the Garmin topos on SD cards or DVD. The state topos at http://www.gpsfiledepot.com/maps/ work just fine. As long as you have a copy of MapSource installed, don't worry. Just download and install the map(s) you need. (If you bought the unit used, and don't have MapSource, let me know and I'll post details on how to get it installed.)

I've even created my own smaller 'area' topos and simple trail network overlay maps that work fine too. It's a slightly simplified take on the quite involved topo creation tutorials that can be found on gpsfiledepot.

After the topos are loaded into MapSource, you will still need to load parts of (or the whole) map onto your GPS for use in the field. Check this link for a tutorial on how to do this. http://www.gpsfiledepot.com/tutorials/how-to-load-maps-on-my-garmin-gps-unit/ Again, let me know if you have problems and I'll post up something more detailed.

Try these things for now. I'm happy to work with you on issues you run across as you start wroking with and experimenting with your 60CSx.