Michael, I studied psychology and business (a natural progression into marketing!) and you are absolutely correct about the power of first impressions. The emphasis we humans put on first impressions and associations originates as a species defense mechanism.

We as marketers can use this same "priming" concept to plant an association in our visitor's head. Of course as marketers we want to plant a positive association; that first sentence you communicate with your visitor should have that positive association somewhere in it...as you point out.

Of course you must not just make the association and that's it...you must incubate it and remind the visitor of it throughout your sales process!

Nice share buddy, it's a powerful concept!