Figure with the weather change this thread would get started eventually. So here's where we can post your suggestions.
My only suggestion so far is Arm Warmers! I also mountain bike in addition to kayaking and I use a set of Pearl Izumi Arm Warmers. They are skin tight but breathable and keep your arms nice and dry and warm under a light jacket. They're designed to wick moisture away from your skin.
These are the ones I use:
http://www.amazon.com/Pearl-Izumi-El...rs+pearl+izumi