I finally finished up my project of turning my crock pot into a sous vide cooker. Total cost was about $25. Total time was about 20 hours:p Was it worth the money I saved? probably not, but it impresses my friends with both "geekness" of it and the food!
I did a short write up of the project, so if any of you are technically adept, you can make your own for dirt cheap and no design time.