Squats - Proper Form For Every Height

Lemongrab13

I'm not sure if this article has been posted before (it likely has) but it's truly helped me.

http://www.schwarzenegger.com/fitness/post/picking-the-squat-thats-rght-for-you

It shows you correct squat form for those with long legs-short torsos, short torsos-short legs, short legs-long torsos, etc. complete with video.
Also if you have problems with ankles and hips he provides tips.
Hope it helps you