Request a trial download of IDRISI Selva below
http://www.clarklabs.org/buy/trial-request.cfm
Purchase at www.idrisi.ca
IDRISI Selva is an integrated GIS and Image Processing software solution providing nearly 300 modules for the analysis and display of digital spatial information. IDRISI offers the most extensive set of GIS and Image Processing tools in the industry in a single, affordable package. With IDRISI, all analytical features come standard—there is no need to buy costly add-ons to extend your research capabilities.