Dhammakid wrote:Kim O'Hara wrote:Short answer: Go for it! It will do you a lot of good and no harm.
Long answer: Gets complicated and I don't have time just now - sorry. Maybe later.
Kim
Thank you, Kim. I will probably go for it, but I would very much like to hear the complicated parts when you can find time to tap it out.

Dhammakid
Okay ... since I volunteered and you asked nicely.
I just visited the good ol' Wikipedia
http://en.wikipedia.org/wiki/Yoga to refresh my memory and found that there's very little there I don't agree with (though our emphasis as Buddhists is a bit different) so if anything I say here is a bit obscure you'll probably benefit from visiting that page.
So:
• Yoga in the most complete understanding of the term includes aspects which parallel all the aspects of Buddhism, plus the physical side which is what many of us mean when we say 'Yoga' - we should really say 'Hatha Yoga'.
• The Buddha's pre-enlightenment training included many practices which look very like early forms of Yoga.
• Patanjali's Raja Yoga, which is the basis for most or all modern schools, dates from some time after the Buddha (?100 BCE - 500 CE?) and seems to have borrowed quite a bit from Buddhism.
• Hatha Yoga was conceived as a supporting practice for long periods of meditation - which happens to be just what you want it for.
For me it therefore makes absolute sense to use Hatha Yoga as a supporting practice for Buddhist meditation. In terms of your original question about an 'incomplete' or 'watered down' practice, there are no concerns at all, since you will be following the direct equivalent of the complete Ashtanga Yoga practice, just one that is based on a slightly more accurate description (well, we think so!) of our present reality and ultimate goal.
Criticisms of 'watered down' practices are usually directed at people who only want to tone their bodies, maybe with a bit of relaxation thrown in.
Bottom line = short answer in my first response: Go for it.
Just for completeness:
• There's a whole theoretical side of Hatha Yoga to do with energy centres and channels which I reckon is an optional extra but some people take very seriously.
• I have done a little bit of Yoga but I'm currently enjoying Qi Gong more. I like the way it keeps the body moving, because that's a bigger contrast to the sitting-still-at-a-desk that I do too much. YMMV, of course, but it's worth a try if you have a teacher nearby.
Kim