If you speak French, GNU/Linux is your OS, work in the field of natural product chemistry and use GIFA, I'd bet you already know this scientist. He has written Logic for Structure Determination", a free program to "find all possible molecular structures of an organic compound that are compatible with its spectroscopic data" that runs on all platforms.
Jean-Marc Nuzillard recently invented an automatic method to extract J values from 1D spectra. See: É. Prost et al., C. R. Chimie 9 (2006). The program implementing this method is called AUJ and is also freely available.
Jean-Marc also pioneered the P2P-QM field with the text-book Introduction à la Résonance Magnétique Nucléaire des Liquides that leads you from ignorance to the understanding of today's NMR in 200 pages. If 6 pages are the maximum you can digest, you find simplified introductions of that length too.
All of this and much more following this link.