There are 46.1 million capacitive touch styluses (styli maybe) on the market. Approximately. Most are the same with a different name. Many of them suck.
The Cosmonaut by Studio Neat is a wonderful iPad stylus for just about anyone. Don't let the odd looks dissuade you. Check out Studio Neat's product video.
Below is something that I wrote using the Cosmonaut stylus and Noteshelf on my iPad.