Glad to help Shooter, both you and Brian have given me training gold for years now so its nice to return the favor. I use a lot of this stuff in my work with people. My semi-scientific approach is to evaluate our three balance systems , first in isolation then in integrative function. They are 1) vestibular, 2) occular 3) proprioceptive/body feel. There are a lot of ways to enhance/dampen any one of these so as to force us into using principally one and then finding issues within it.
Then, and I still haven't worked through all of this, there are reflexes and neurological pathways that link these systems together. For example, the VOR (vestibulooccular reflex) coordinates every head and eye movement together.
http://en.wikipedia.org/wiki/Vestibulo-ocular_reflex Another hugely important reflex is the VSR (vestibulospinal) which coordinates spinal and vestibular positioning.
One can get super specific with testing and I've seen some magic done by experienced bodyworkers. I think this
http://www.dizziness-and-balance.com/anatomy/vspine.htm on the site you pointed me to is a great page.
After I get a general idea how I want to approach the situation, then the fun begins. Traditionally, rehab is categorized into 3 or 4 distinct strategies.
1) adaptation
2) habituation
3) compensation
4) sensitization
Because its a headache to review these strategies, I'll just link to a book page:
http://books.google.com/books?id=q-hCAZCA4kMC&pg=PA56&lpg=PA56&dq=adaptation,+compensation,+vertigo&source=bl&ots=i-nrq-rOgy&sig=jsDNoycvJmR8TSVkwkUhLl5sSlA&hl=en&ei=ccT8Sv-fOtO6ngeKmdyPCw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CBcQ6AEwAw#v=onepage&q=adaptation%2C%20compensation%2C%20vertigo&f=falseAnyways, be interested to hear what you think of this approach. I've noticed pitfalls with it and am sick of disembodied therapists bastardizing the methods, so it'd be good to hear from some folks I respect.
-Brady