To limit the risk in this investment you could buy a Jan.08 Call with a strike of 70 for around $5-6. The bid is at the time of this article $3.90 and the ask $8.80. The last trade was $5.50. This effectively limits your entire downside to $550 per option. I bought a call last month for $3.2 which is now worth $5.5 for a gain of 71% in a little over a month. If the stock market and Pre-Paid Legal continue to do well you could see an appreciation of 100% on your option by expiration. This is not a recommendation for you to buy but only an example of an option and stock that I find reasonably valued. As always invest wisely by doing your own research.
Disclosure: Author has long positions in Pre-Paid Legal Services.
PPD 1-yr chart