I'm not sure where people are getting that goats are stupid/hard to train. Whenever I got my FFA show goats, I had them walking on a collar and up in the goat racks the very first day after them having minimal human contact. Yeah, you're going to have to drag them around sometimes. Let them fall down, bleat, drag all they want. They'll learn that it is A LOT easier just to go wherever you want to go. I just used big dog collars for mine at the barn. For show, I used a metal chain with a plastic tube for a handle.
As for worming, I wormed every 28 days. This here is what I used: Safeguard Goat Dewormer - DuBois Distributors, Inc.
I never vaccinated, although they should have all gotten their shots and vaccinations when they were a few days old at the breeder's.
If you're going to get wethers, you're going to worry most about urinary calculi(kidney stones). The easiest preventative is to add ammonium chloride to your water. Just like a handful for a large bucket should be enough. I got it at my feed store for like a dollar a pound, and it lasts you quite a while so it's very inexpensive. However, do NOT use a metal bucket for water with the ammonium chloride. One kid in my FFA chapter made this mistake and his goat dropped the day before show. Two of my friends were actually taking care of him in the wash rack when he just collapsed, and he later had to be put down at our barn.
Goats will scour(diarrhea) when they're stressed or sick. The best way to treat that is to give them a bit of peptobismol and then a bit of probios. The probios will help their gut get back under control.
As for trimming hooves, it is literally the easiest thing ever. They even sell goat/sheep hoof clippers at TSC or your local feed store. Basically check 1-2 times a month for any extra bits on their hooves and trim them off accordingly. Here's a very informative website on how to trim properly: Hoof Trimming
The extra "flap" of hoof you see on the left isn't hard. It's very flexible and you can easily move it. Trim it down with these: http://4.bp.blogspot.com/-oTpgf8-da-...f+trimmers.jpg
And voila, you're done. You really don't need to worry about angles or anything complicated like a horse's hoof.
As for showing domination, I've never had a goat challenge me. But I've only ever raised does and wethers. You really don't need a ram anyway LOL. They'll actually look at you like a fellow herd member/friend. Just make sure you're above them in the "herd" by reprimanding them any time they climb on you or anything like that. I personally raised only boers, the prime meat goat, and they are just hilarious. They're like hooved dogs that will literally follow you anywhere you go or hold a conversation with you. I also taught my goats how to pull tires with a harness to build muscle, so maybe you could teach your's that to help around the farm.
And as a side note, sheep are dumber than a bag of rocks.
I would pick a goat over a sheep any day hands down.