Reed Farrel Coleman is one of my favourite new private eye writers - he has a great sense of tragedy, place and noir. I've read less of Ken Bruen's work, but what I've read has been good, especially London Boulevard (that's coming out in Finnish in a few months; see to it that you read this book). So their joint effort, Tower (out in 2009 from Busted Flush Press) was bound to be good - and my God, it is very good! It's both tragically and hilariously violent, very elliptic in style and narration (and actually pretty hard to follow at times) and there's also a nice twist or two in the middle. It's clear both writers had a good time writing this. See Cullen Callagher's review at Pulp Serenade.
Granted, I had some trouble getting into the flow of the narrative and I thought the ending could've been stronger, but I don't mind, since the other stuff is so good. No wonder this has been popular and victorious: it won Macavity for best novel and was nominated thus: Anthony: best original paperback, Spinetingler Magazine Best Novel: Legends, Book of the Year: Foreward Reviews, Crimespree Magazine: Best Novel of 2009.