On the flip side.....out of the hundreds of millions of life forms on earth, us stupid humans are the only species to become "intelligent". Those are some pretty small odds. It's suprising that even we are here. But, sheer happenstance. The right sequence of events happened, and here we are.
But, expanding that. Look at how unlikely it is that we became intelligent. Chances of that sequence of events happening again to create intelligent life out there are very low. However, when you are dealing with infinite amounts of space, IMHO the odds of those unlikely events happening elsewhere only increases due to the limitless opportunities afforded by limitless space.
Is there intelligent life out there, somewhere? I think so. Chances we'll ever meet? Slim to none. If there is intelligent life, it's likely millions of lightyears away. Which means either us or them will have to develop a way to defy the laws of physics to allow the travel time to decrease to something more reasonable.
On an interesting side note; Scientists think that if humans weren't around, the most "intelligent" species on the planet would be squid //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif