I'm wading through a bunch of Rex Stout novels right now, his Nero Wolfe eccentric genius.
Primarily psychological murder mysteries written in the 1920's and 1930's - the versions I'm reading - and nice, light summer reading while sipping a beer under the deck brolly. You have to marvel at a detective who never leaves the house and downs a case of beer a day.
http://www.kirjasto.sci.fi/rexstout.htm
Then it will be Peter Hamilton, The Neutronium Alchemist.
http://www.sfreviews.net/pfh_neutronium_alchemist.html
Cowperson