ElTerprise: Sorry should have given some input of what i've read before. I actually read *all* Hitchhiker books - even that one from Eoin Colfer - but i haven't read the other books you mentioned yet.
Other stuff I've already read is the first Dune trilogy, The Star Diaries, The Foundation Trilogy, The inhabited Island/Prisoner of Power and some other rather trashy stuff, not to mention some Star trek novels....
Yeah it wasn't up to par with City and Asylum but i had fun with it.
No problem, I've pretty much run out of recommendations for mainstream scifi anyhow. :P The three I mentioned are good books, though.
Wool is the first book of a trilogy, and it's more serious scifi about a group of people living in a silo after the world has become uninhabitable, only they've been there for so long that they hardly have any notion of what the outside is like anymore, and of course there's a bigger conspiracy as well. :P
The Martian is about a guy who gets stuck on Mars due to an unfortunate accident and has to survive there until he can be rescued. This is a light-hearted book, and it's mostly just rather funny.
Gravity is about an unknown disease that breaks out on the ISS, infecting the astronauts onboard and trapping them in space far away from any real medical care/professional help. It's really a page-turner, I finished it in an afternoon because I kept wanting to know what was going to happen next.