Just noted the sponsor link , it was Kingfisher, (didn't mean to be redundant!) and have now read up on other articles here on Aikiweb. Seems to be a few good producers out there, and plenty of information if you care to delve deep. This kind of information sharing is the best thing to come out of my time spent on forums.
Another plug for decent bokken, 9 Circles in England has a good clean lined bokken out of Japanese white oak that is great. I got my new bride one for xmas and was very please.... I mean, she was very pleased.