I believe there is life out there, for simple mathematic chances would say so. After all, the sun is 1 of 10^22 stars approximately, and all you would need for another 'life' form is one of the regions near one of those 10,000,000,000,000,000,000,00 stars to be habitable. The odds, I would think, are respectable.
However, as for UFO's, I don't know. I would'nt be surprise if they're all fake and artificial, or mistaken objects. Just because there's other life out there would'nt necessarily mean that our civilization has had contact. And who knows what the definition of 'life' billions of lights years away might be.