Bocomo, don't give up on the jig-n-pig, try fishing it with braided line and make sure that you keep it in contact with the bottom. Braided line is a lot more sensitive than mono and will help you learn how to fish a jig off the bottom easier.
Suspending crankbaits also work well in cold water using a stop and go technique.
Another thing to try is slow rolling a spinner bait a few feet off the bottom. Throw it out and let it sink all the way to the bottom, keep your rod tip down and reel slowly.
