Could the Colbert Bump have a significant effect in a few weeks when interested viewers who may have seen it pop up in the press once or twice in the past, decide to fund an exchange account or set up an OTC? Yes.
Might people buy now in anticipation of that? Probably not. People aren't quite ready to trade on news yet, they're still trading on fear
Could the current infrastructure handle it? HELL NO. Lol. Our current services are hanging on by threads as it is. The script kids who started these websites 2 years ago when bitcoin was a fledgling hobby are way out of their league, they need huge datacenters and IT managers and multiple paid staff and scalability plans and all kinds of fancy shit that they can't even wrap their heads around at the moment.
Heck, even bitcointextmessage was down a couple days ago ;-) can't handle the SMS load, eh? This shit is pitiful.
Nothing like a good kick in the rump to get things going, though. They can't wallow in mediocrity forever or else they'll be left in the dust when the real services start opening up.