Most of you probably already know this, but one area you do not want to skimp on is your electrical switches. I use the cheapo plastic toggle switches from the auto supply store, big mistake. They ended up full of moisture, corroded on the terminals, and the vibration had actuall caused a couple of them to snap off. Kind of scary when you can't get your bilge pump to run because the switch is broken, or has lost contact. I changed them all out last night with marine grade brass toggles, with the connectors that use a screw rather than spade, and also changes out all my connectors to marine grade, with the shrink tubing built in at the end. Hopefully that will solve my electrical problems.