My son was 'diagnosed' with Sensory Integration difficulties in 2nd grade, and got 6 months of private Occupational Therapy (paid for by insurance mostly)once a week and 2 times a week in a small group in school. It seems like it helped tremendously, and it certianly got him out of the classroom, which was very important at the time.

Some gifted kids have trouble due to their 'OverExcitabilities' http://www.hoagiesgifted.org/dabrowski.htm
sometimes it's hard to know if it's one or the other.

My thought is that if it is interfering with one's life, and you can afford the OT, give it a try! It seems like the younger the child is, the better the whole thing works. I wouldn't try to 'do it myself' from books if I had a choice about it, if it does seem to be a struggle for him.

Best Wishes,
Grinity

Coaching available, at SchoolSuccessSolutions.com