I use a Spyderco Sharpmaker on my smaller knives, and then strop them lightly. I use a diamond stone or rod on my larger knives every once in a while, but usually just strop them.
Coldone turned me on to Lee Valley "Veritas Green" honing compound, which is what I use on my leather strop.
After I sharpen, I wipe my edges down with Sentry Solutions "Marine Tuf Cloth" - its the best rust inhibitor I've ever used - and it isn't oily and messy!