Yep I love my walking poles, I use them all the time. I will be going to the big Agricultural show up the the city later this month, and will take them, they will be the only way I will last the day. They not only help me walk but give me support and people tend to move out of your way,
here's a link to the ones I've got, but you can get a cheaper version.
Kate

http://www.leki.com/nordicWalking/index.php