I don't mean what will he say - there's already enough speculation on that.  Rather, what will the speech look like?

"Look", not "sound"?

His own skills and the suggestions from his advisors will undoubtedly permit him to deliver a speech in an effective manner.  What I'm wondering is whether this occasion might not also be an appropriate opportunity to emphasize  visual rather than exclusively auditory means of communicating content.

As I understand it, Obama will tell the country that healthcare reform entails a set of essential changes.  It seems to me this type of listing lends itself to visuals - in big, bold print, and kept in view for at least a minute each to ensure their retention in the memory of the national audience.

Just some examples.  "AMERICA MUST KEEP WHAT IS GOOD ABOUT OUR HEALTHCARE AND CHANGE WHAT NEEDS TO BE FIXED.  HERE ARE THE CHANGES THAT CONGRESS MUST MAKE TO GUARANTEE HIGH QUALITY, EFFECTIVE HEALTHCARE FOR ALL OUR CITIZENS:"

slide 1: NO AMERICAN WILL BE DENIED HEALTH INSURANCE

(while the slide is up, the President discusses "cherry picking" and "pre-existing conditions, and the following slides will also be accompanied by relevant talking points)

slide 2: NO AMERICAN WILL BE CHARGED UNAFFORDABLE RATES FOR BEING SICK

slide 3: EVERY AMERICAN INSURANCE PLAN WILL COVER BASIC MEDICAL NEEDS

slide 4: NO INSURANCE COVERAGE WILL EVER RUN OUT OR BE TAKEN AWAY TO SAVE THE INSURER MONEY

slide 5: AMERICANS MUST BE GUARANTEED AFFORDABLE COVERAGE BY REQUIRING COMPETITION

(Here, of course, is where the public option will be discussed.  From media reporting, I judge it unlikely that Obama will threaten to veto a reform package without a public option, but he can make the point that a public option is the only sure means of guaranteeing effective competition in areas where insurer monopolies and weak bargaining leverage for subscribers render coverage unaffordable - mainly, those who must purchase individual coverage, or small businesses with meager bargaining power.  He can point out that large employers can already negotiate favorable rates, and that no proposal in Congress would add a public option to the mix for those employers, or attempt to eliminate insurers for those employers.

slide 6: HOSPITALS AND DOCTORS MUST BE REWARDED FOR PROVIDING BETTER HEALTH

(this is the place to discuss changes that reward providers for outcome rather than unnecessary tests and procedures that raise costs but don' t help patients, or may even harm them (e.g., unnecessary radiation exposure from routine CT scans when they don't confer any benefit)

Finally, at some point, these might be reiterated in a summary slide:

NO AMERICAN WILL BE DENIED HEALTH INSURANCE

NO AMERICAN WILL BE CHARGED UNAFFORDABLE RATES FOR BEING SICK:

EVERY AMERICAN INSURANCE PLAN WILL COVER BASIC MEDICAL NEEDS

NO INSURANCE COVERAGE WILL EVER RUN OUT OR BE TAKEN AWAY TO SAVE THE INSURER MONEY

AMERICANS MUST BE GUARANTEED AFFORDABLE COVERAGE BY REQUIRING COMPETITION

HOSPITALS AND DOCTORS MUST BE REWARDED FOR PROVIDING BETTER HEALTH

Ross Perot once did something like this, and it went over well.  Maybe if done on a grander scale, in front of Congress, the effect could be even more compelling.  It would also lend itself to recapitulation in the print media, YouTube, and the Evening News on TV,

Just a thought.