After all these years, i have learnt that it is futile to try and stay dry in down pour. Instead, accept the rain, and enjoy it ! I don't wear socks. Never bother to keep the shoes dry. Let them get wet. Just keep them in sun and they will get dry. Don't even wear rain pants unless it is very cold (mid to low 30's F). Only a heavy t-Shirt, rain jacket, and rain proof gloves, and NJoy the down pour. Just keep my pannier dry ;-)

Anything above 70 degrees, I don't bother with any rain proofing except my pannier, and change at office. Rather than sweating in rain-jacket, I would rather get wet in rain.