I can honestly say, one of the most important classes I ever took was typing (in modern times, keyboarding, I suppose). I use this skill every day and have used it for the last 35 years. How cool is that? I am not restricted or frustrated by the process of getting my ideas down. Nor should your students. I take the time to in September to introduce and teach keyboarding skills because I know that by Christmas, they will all be fairly proficient typists and able to produce amazing amounts of work in short order.
By June, you should have a whole class of rockets. Many of my students are typing at over 40 words per minute because they get a chance to practice so often for their inquiry work. They love it, much like we all loved that feeling of accomplishment when we mastered handwriting. It's a true skill and progress is almost guaranteed. Very satisfying! Start small and simple. Teach the home row, posture, training the eye to look at the screen, not the keyboard. I don't bother with much more than the alphabet and basic punctuation marks. Getting into memorizing the number keys and special symbols is not really necessary for everyday communication. Also, I ask the kids to find the most fun games they can to practice at home and the students exchange their discoveries and work outside of the school day.