Dan,
You are also welcome to come over to Heartwood since you're not that far away - alumni get free consultations! We could look through the library at all the books we've been mentioning and I could show you some of the typical calculations for this issue.

About the end girt to carry the end of the flooring: we have often just put the first and last joist in about 3" from the face of the post (10" or so from the wall surface) and cantilever the flooring boards out to the wall. A trim board is much easier to attach after the fact than putting in a structural member, and the post is not compromised.

Mike and Will, thanks for the info on resources.

Will, wow, what a generous offer. I'd love to take you up on it. Its really just the post size and species in relation to the kneewall and joinery that Im still trying to figure out. There seem to be simpler solutions out there, like sizing up the posts, or most simply bringing down the kneewall, but learning some of those calculations should certainly prove helpful in the future, and hopefully for this projects question as well.

I also plan on cantilevering the floor boards, and with my joist layout it will be 9".

Im close and available, and feel so grateful to have you guys nearby.

Dan