(taken from Guerilla Negotiating by Jay C. Levinson, Mark S.A. Smith, Orvel R. Wilson):

1. Discuss the SPECIFIC benefits. People do things for their reasons, not yours.
Present proof that you can fulfill these benefits.

2. Show EXCLUSIVE or superior features. Don't waste time on basics.
Discuss what your competitors can't do and you can, but only those that matter to your counterpart.
Magic word to use: Only.
"We are the only supplier that has a warehouse within same-day shipping radius of your company."

3. Project your personal DEPENDABILITY and your company's RELIABILITY.
Be professional in your attitude and use a positive approach in negotiating.
Bad mouthing your competitors imply that you don't really have a superior product
and destroys your credibility.

4. Position what you have to offer as having the RIGHT PRICE.
Help your counterpart understand the value you provide for the price you ask.

5. Demonstrate that the time is right to decide NOW.
Do this through special this-week-only pricing or promotions.

6. Use PROOF STATEMENTS, based on your notes, to match your benefits to your counterpart's needs.
"You mentioned that saving time is important to you. With this new technology, our product takes less time
to do the job than what you're using now, thereby saving you hundreds of dollars."

7. Support your case with VISUAL AIDS. Show charts that reflect just how much they will save money,
use props, photos, or documents.

8. Present an EMOTIONAL APPEAL. Emotions puts the motion in motivation.
Explain not only the features and advantages, but also put the prospect in the picture.
Demonstrate how they will personally benefit. Help them imagine themselves using
the product, benefiting from it, and enjoying it.

9. Dramatize with SUCCESS STORIES.

10. Include a DEMONSTRATION. If a picture is worth a thousand words, then a demonstration
is worth a thousand pictures. Have them see your location, send a videotape, let them taste your cakes, etc.
depending on what you are actually selling.

There you go! These steps are applicable not only for selling product, but also selling ideas. Not only for external clients, but also your internal client: boss, peer, owner.
Hope it will further enhance your presentations!