I've read the first 2 Larsson books - absolutely love them, got the third one waiting to be read.
Currently reading The Redbreast by Nesbo; bought the book because of the 'The next Steig Larsson' splashed on the cover, and as it was 99p in Waterstones (although you have to spend £20, which Is didn't know, and got it for 99p anyway). I'm not totally gripped by it to be honest - about 250 pages in, and I'll finish it, but not all the enamored with it to be honest!