Everything is Illuminated, Jonathan Safran Foer
I already love the movie adaptation of this. I think that colours my reading of the book. It has a couple of additional storyline, one in the past and one in the future of the main storyline, which was distracting. The searcher is a writer rather than a collector. This is both a less unusual past time and provides one less link with the past he finally finds. What I can't do is go back and read the book before the film and find out if it would change my opinion.