Originally Posted by Daspydyr

Soaking a chain in lube is overkill, but if you don't mind the expense it should be great for the chain. When riding a bike the chain should be nearly dry to the touch on the outside. The rollers and links are what need lubrication. Too much lube attracts dirt and fouls the chain pretty quickly.

You have a good devotion to the condition of your bike. Personally, I think that a clean chain is one of the best improvements you can make for power transfer. There is a good discussion of chain lubing in the Mountain bike thread, two of them in fact. You might check them out.