I wear a jacket like this (with a long sleeved biking shirt underneat I stay warm to 0 degrees C):
http://www.mec.ca/Products/product_d...=1187498772989
I put this over my helmet to keep water off my head, off my neck and most importantly off my glasses: (
http://www.mec.ca/Products/product_d...=1187498891899)
And I wear tights I got years ago that are gore-tex on the front and spandex on the back. I stay dry and not too hot.