SCDNR has updated 2010 lines available for download provided that you have the appropriate software.
There are many sources where you can obtain Free and Open Source (FOSS) desktop GIS packages. See this link to view a forum discussion that lists many options and provides some user feedback about their experiences using this software.
You will also find links to download and learn more about several open source applications through this forum thread.
Please see our GIS Resources page for more information about sources for GIS data, WMS services and links to educational resources including our new YouTube Channel.