Originally posted by IrimiTom
If what you mean by "version" is 31, and so on, any will do, I'm getting a jo and a bokken and I want to work on my tai sabaki a bit.
This came up recently. The gist was that there are about a jillion versions of just the 31 jo kata.
If you're not tied to a specific version that your school is already doing, I highly recommend those on the http://www.ysaohio.com/
site. McVey Sensei does a great job there.
I also highly recommend the CD-ROMs that the dojo sells. Very nice.