Thanks everyone so much for your suggestions. Here are the results:
needler - I moved here in August, so I definately understand your confusion. Samuels isn't actually a town - it doesn't have it's own zip code. I'm about 20 miles north of Sandpoint, if that helps
And I'll have to look up where Hayden is again, I know I've been through there at least once...thanks for the tip!
ByNatureFarms - The first thing we did when building our main coop was to build a nipple waterer system just like yours. But the chickens had already been drinking out of a trough type waterer for a few months, and the wouldn't drink out of it. I checked it several times to make sure it was functional, but they refused it and would run over to one of my other coops and drink out of the trough waterer. Spoiled as they are, I bought them a 5 gallon metal waterer, and then had to fork out more $$ for the base heater. I love your idea though and I will try it with my project birds - I still have the bucket with the nipples in it, so all I need is the deicer. I loved the video, and your set up. Thank you so much for sharing and please let me know when you post the new video
Evelle - I checked Carter Country Farm and Feed and they don't carry the kind I need, just the base heater like I have. But thanks for the tip, I didn't even know they were there in town.