The Silva thing might be 'The Ultramind ESP System' from Nightingale-Conant.

I was also just browsing around one of Dick Sutphen's sites and there's an induction on psychic protection that might be useful: http://www.mp3prohypnosis.com/ipnmonitor/index.php?maincat_id=23

I like his stuff myself. He has a lovely voice for hypnosis.