If you were ever to try meditation, you sound like you might get the most out of Mindfulness in Plain English. The author presents meditation as a practice which serves a philosophy. The philosophy is that as a species we suffer from our emotional attachments to the outcomes of events, to the objects around us, etc. In geek parlance, we have stress responses that were appropriate in our evolutionary environment but are unadaptive to modern life. Meditation is a practice that helps us override these stress responses, and for many people meditation is a better tool than attempting to override those stress responses with thoughts. And even if you don't consider yourself particularly stressed, a Buddhist might suggest that overriding those responses can help remove the weight of attachment from your decision making process and make you into a more rational person.
When we're long dead, I think we'll see a uniquely Western Buddhist tradition that grows beyond its adolescent pangs. I've already seen at least one new one, a fantastic practice that works fairly well.