The Big Read's #4: The Hitchhiker's Guide to the Galaxy by Douglas Adams. (Yes. This is, in fact, a book I have not read.)
I just last night finished off The Time Traveler's Wife by Audrey Niffenegger. A coworker loaned it to me the day before. I definitely got sucked into the story and rode the emotional rollercoaster with the characters. I expect I'll be seeing more books from my coworker in the future.
As for The Big Read, I'm trying to take the list roughly in order but am giving preferential treatment to books we have already in the house. I have to admit that I'm not confident that I will make it through Jane Erye (#10). It was given to me as a gift years ago and I've tried starting it a few times and given up pretty quickly. I'm also a little leery of War and Peace (#20) but I'll worry about that when I get there...