Want to Read: Justin Cronin - The Passage

I'd been hesitating whether to put this book on my list to read. I am fond of end-of-the-world apocalyptic scenarios, but wondered if this one was just cashing in on the vampire trend by adding that into the mix. Plus it's so big - surely it's been plumped up to justify a steep price? But after reading good reviews and recommendations by friends I'm interested to give it a go. Let's see if it turns up as an e-book at the Toronto Library that I can download while I'm traveling...