1. Select the quantity of each item you wish to purchase:
   15% off for 5 or more, mix or match!

   0 1 2 3 4 5 6 7 8 9	Personal Sky Chart - Serious Astronomy for your Sharp Zaurus - $29.95 each
   0 1 2 3 4 5 6 7 8 9	XEphem download edition, $59.95 for download access key. Does not include CD-Rs
   0 1 2 3 4 5 6 7 8 9	XEphem 3 CD-R edition, $69.95 including free shipping and free download access key

2. Check here for your discount if you have ever purchased from CSI Inc before:
   Don't bother to cheat, we know who you are.

   Apply 15% return customer discount

3. Please tell us how you first learned of XEphem or PSC: (optional)

4. Any additional comments: (optional)

5. By clicking below you acknowledge you have read and understand the following Terms of Use for our products:
   • Unless you have made a separate agreement with us otherwise, you only have permission to run our products for your personal use or in bona fide public educational or non-commercial research settings.
   • Unless you have made a separate agreement with us otherwise, any source code included in our products may be modified for your own personal use but may not be redistributed and may not be used, in whole or in part, to build other computer programs.
   • NO REPRESENTATION IS MADE ABOUT THE SUITABILITY OF OUR SOFTWARE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.

Don't worry, this just does the math, you can still back out.