First off, he says he will bring about change but my question - what does he want to change, why, and how will he change it? Some actual details of the change he will bring about:
1) Raising capital gains taxes 100% - since 100 million Americans now own stock, this is not a tax hike on the rich. A lot of retired folks who depend on their investments will get hurt by this.
2) Increase the ceiling on Social Security Payroll taxes. This hurts middle income people the most.
3) Talk to the leaders of Hamas, Iran, etc. Unfortunately, this deals with the issue of face. In many Eastern countries, face is important. When you give their leaders face, it's increases their prestige enormously. Certainly we should negotiate with our enemies as well as our allies, but we should do so from a position of strength, and in a way that will not increase their face.
4) Obama's health care plan - it sounds great, but how do we pay for it? Also, there was mention made of allocating services for the elderly. That means longer waiting lines, services having to be pre-approved by the government, etc. In Canada, this kind of thing has meant people suffering in pain while waiting for months to get treatments approved - it's why there is a growing business of people coming over here from Canada for many procedures. One benefit of Obama's health care plan, however - Mexico's health care business will boom, as our people drive down there for treatment rather than waiting.
Also, Obama parrots the Dem party line on thing like school choice - while many African-Americans favor being able to send their kids to the school of their choice, the Dems won't consider it. Meanwhile, McCain actually has a record of reaching across party lines, much to the chagrin of his own party at times, while Obama's record is slim and doesn't include concrete examples of bipartisan legislation.