I love the Neal Stephenson books, big & dense tho they are.
SciFi: Anathem, Snowcrash, Cryptonomicron
Speculative fiction: Quicksilver, first volume in a Baroque Trilogy. This one is set in 17thc, Isaac Newton, Leibnitz, Charles 2nd. Barkers, Papists, Quakers religious war, vagabonds. Fucking fascinating, gives you a really good idea what life was like back then. Impeccably researched.
I do love science books: Darwin & the Beagle, Walking with Dinosaurs (loved the TV series despite some faults) loved the "How we did it" doco even more! Got the Walking with Beasts DVD--life after extinction of dinosaurs (I do NOT buy the meteor theory BTW, the coming of grasslands and deciduous trees) that didn't suit the over-specialised dinosaurs can explain that and why did ichthyosaurs die out in the sea but crocodiles/aligators go on to thrive?) and one of life in the Carboniferous era, with much more oxygen in the air & high temperatures: centipedes 3m long, spiders the size of our heads etc creepy but fascinating.
Hmmm I guess we can include non-music DVD/CDs here
