@Thomas,
You misunderstood. Under 200k will get a tax cut. Over 250k will lose their Bush tax cut. Of course, these are generalities.
Obama's ad reached a lot of people on an emotional level, (those who possess emotions other than greed and hatred) it was a very powerful production and will sway undecided independents.
While Obama continues to project the image of a strong, calm leader able to take control in times of crisis, McCain continues to flail like a madman. As Bill Clinton pointed out, a US presidential campaign is the most brutal job interview imaginable and Obama has aced his while McCain failed horribly picking serial-liar Palin because he found her sexually appealing.