[Paddlewise] What to wear wet suit, dry suit

I need some help here and please correct me if any of my assumptions
are wrong.
Dry suit, Wet suit, I am not sure what I want.
Here in Ohio paddling time is to short.  So to extend the season, I
want to get a dry suit or a wet suit.
What (I think) I know:
Dry suits keep you dry and with clothes underneath warm
Wet suits let you get wet and warm
Dry suit will cost more
Either can be used for SCUBA diving and paddling 
For extreme cold and/or extended cold a dry suit will keep you warmer
longer

I am leaning toward a dry suit.

Questions
What materials should they be made of?
Where to get one?
How much is it going to cost me?
How long will they last if treated well?
How long will they last if treated poorly?
Is one company better than any other?
What else do i need to know?

Thanks for the info. in advance.

_________________________________________________________
DO YOU YAHOO!?
Get your free _at_yahoo.com address at http://mail.yahoo.com

***************************************************************************
PaddleWise Paddling Mailing List
Submissions:     paddlewise_at_lists.intelenet.net
Subscriptions:   paddlewise-request_at_lists.intelenet.net
Website:         http://www.gasp-seakayak.net/paddlewise/
***************************************************************************