Regarding your last question about the ecstatic symptoms of chanting Hare Krishna, you should know that the Hare Krishna Mantra has an equal effect upon all devotees. Just like the sunshine has an equal effect on everyone, but when it is covered, the sunshine has a different effect. Similarly, the influence of the Hare Krishna Mantra becomes manifest when one is no longer covered by the ten offenses to chanting. The more we become free from the ten offenses, the more the effect of chanting becomes manifested through us. Everyone can become a great devotee, being freed from the offenses 100%, simply by one's determination and effort.
When the Composer machine is purchased, you will be engaged from eleven till three PM, and from seven till ten PM. That means seven hours in a day. When you are typing, you should know that it is as good as chanting, because the work is also on the matter of Krishna. Chanting on the beads and chanting on the typewriter Composer machine are both transcendental sounds of Krishna. Krishna's Name, His Fame, His Qualities—all of them are on the absolute platform, and therefore there is no difference between one and another. So do not be misled that you are typing and not chanting. Our books should be on the standard sample of Teachings of Lord Caitanya. Your husband will guide you, and Hayagriva will guide you, so do it nicely.