Investors looking for a small-cap route to exploit attractive dynamics within the professional security market could do a lot worse than Napco Security Technologies, Inc. (NASDAQ: NSSC ). Even if the return differential with other small-caps has narrowed in Analyst's Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am n ...