I'm weary of the "Where's the substance to Obama?" question. Those who ask it claim he has no record, has accomplished nothing. And they'd like people to think this despite the fact that it is patently untrue. Anyone reading this right now can easily check Obama's voting record in the Senate, for instance. Or Clinton's. Or McCain's. It took me literally less than 20 seconds (I timed myself) to find this information.
And another 20 seconds of Googling (as a verb, I'm still not sure if this should be capitalized or lowercase - is it a "proper verb"?) and I found this great, thoughtful piece comparing legislation introduced or sponsored by Obama and Clinton. I'm not surprised at the conclusion the author draws, but you should check it out for yourself.
If you trust Wikipedia, check out Obama's Senate record. You can always compare it to his official site.
The point here is that this information is all widely and freely available, folks. Anyone lame-ass enough to say "Where's the beef?" about Obama (or Clinton or McCain) is simply trying to score propaganda points and should be looked at with a dubious, pitying expression. If you are reading these words, then you can find this info for yourself.
To paraphrase Iggy Pop: "Look out, honey, 'cuz we're using technology!"
Welcome to the future.