hyeparis, we are getting ready to dive in Wisconsin this weekend. It should be an interesting experience. Not sure what to expect in tempature in the water. The Air should be 9F, water I expect to be 28F - 40F. We will be near a power plant that uses the water for cooling. Hopefully it will be running, which will warm the water we will be in! Otherwise, it will be all 30F water!
Whopperhead has many videos of cold water dives and pictures!
http://forums.deeperblue.net/681665-post54.html is one post, link to video's in his signature. Your welcome to join us as well!