I had to put down Fellowship of the Ring for a while due to a cascade of library books, but I'm finally back to it. God I just love how that book flows.
When I want something simpler to read I've been going to the Hardy Boys books lately. Read a bunch of them as a kid, they're still quite enjoyable now. Normally if I reread something 20 years later it's pretty clearly no longer my taste, but I'm on book 3 and still enjoying them quite a bit.