Yellville is a nice small town. Very quiet and safe. The schools are good, and you can read stats and stuff about them here.
http://yahooed.greatschools.net/scho...t=331&state=AR The town really supports their high school in sports. It is like the town's entertainment. They show up for everything
I grew up in Flippin, a few miles away. More things seem to be being built in Flippin, which is typical for Arkansas in that development follows a Wal-Mart. Yellville is a nice town though. You mentioned fishing. It is about 7 miles to the White River from there. The Buffalo River is about 12 miles or so. Bull Shoals Lake is about 17.
Something you might be aware of is Yellville is typical of smaller town in Arkansas in that it is hard sometimes for outsiders to feel accepted. I don't believe it is anything intentional by the natives, but some have felt they are never fully accepted. It is also an overwhelmingly white area. I don't know what your background is, but this is not a diverse area.
You can see the average weather here.
http://www.weather.com/outlook/trave.../monthly/72687 The winters are fairly mild, but everything will shut down when it snows or during ice storms. That is kinda nice when you are a kid in school though.
You mentioned also being paralyzed. I don't know specifically if you need lots of health care, but the nearest hospital is in Mtn. Home, which is about 20 miles away. There are local doctors, but most health care is at least that far. For major medical stuff, you are looking at the two hour drive to Springfield, MO.