Just a link for today.
I know some of you like to use training aids... but they get awfully expensive sometimes. This article at golftipsmag.com, simply called Homemade Training Aids, will give you some ideas on how to use things you have laying around the house to help your game.
One quick note: They suggest using a towel under your lead arm to help improve connection. Try using it under both arms. You won't be able to make as long a swing -- you may only get your hands to shoulder height -- but it will help you build a connected feel with both arms. It will also help you stop casting when you start your downswing.