first, Obama's speech:
now, McCain's speech:
and just for shits and giggles, here's the word cloud from that nutcase Giuliani's speech from the RNC:
i doctored Giuliani's speech a little, as you probably guessed. i removed some 9-11 references to help the shape of the word cloud. ;)
check out wordle to create your own. it's fun and there are a variety of fonts, themes and such to use.
here are two i made for the GPP: