Here in Oregon, we have the best rain for riding. It's not so hot that one can't wear a rain coat. It's usually not so hard that it makes it difficult to see (this morning at 0400 excepted). Really, our liquid sunshine isn't any big deal. I do recommend finding a hand cover situation that will work for you, as well as something for your feet. I can't make any product recommendations since my hands and feet are too big for any commercial products (I make my own). Be sure to leave enough room in the gloves so that you don't affect circulation (which depends on being able to move the digits). It's hard to overdo the foot coverings. Warmer is better for the feet. As others have mentioned, wool works wonders. It still loses insulation value when wet, just not as much as other materials.

I also recommend that you have enough storage capacity that you can adjust to changing conditions. For instance, we rode out at 6:30 AM this morning in a steady rain that lasted the first three hours of our ride. Then we had several hours of dry and even some sunshine. Then we had another hour of rain on the way home. It was a great ride, but it would have been uncomfortable if I would have had to pick one set of clothes and stay with them all day without having anyplace to stow them as the day warmed up/dried out and then retrieve them when it got wet again. Oh, my primary stowage is a large pocket on the back of my reflective vest. Sanderson Safety sells them. http://www.thomasnet.com/profile/011...supply-co.html

Oh yeah, lights, lights, lights. Don't skimp on your lighting. The wet road will reflect any light sources out there, so your lights have to compete with those. For the rear, DiNotte. Expensive and worth it. Add some cheapies at varying heights, but have a bright flashing primary back there. In front, there are lots of choices at varying costs.