I've spent the summer and fall doing a LOT of reading, which has helped immensely. But then, researching (applying the term very loosely) is kind of my "thing" and always has been--I had just never applied it to my personal life before.
Some books I have found to be very enlightening:
--Seven Principles for Making Marriage Work by John Gottman --Hold Me Tight by Sue Johnston (recommended by MC) --Mating in Captivity by Ester Parel (just got this one over the weekend...only about halfway through, but so far it's been very good) --Passionista by Ian Kerner (highly recommended! Quick easy read, full of good USEFUL information on the physical relationship, so to speak)