I finished reading 'In Cold Blood' a month or so ago. A very interesting read and you should definitely consider that unless you have of course already read it yourself. Capote translated the facts very well into a non-fiction novel.
Other than that, I'm a fairly 'trashy' reader, consuming Sven Hassel by the bookful while sinking my teeth into Robert Harris' work every now and then(currently reading 'Imperium').
Next on my list is either the sequel to 'Imperium' or 'Grapes of Wrath'. Both are on my to-read list, but now's the time to decide which I read first.