S10 rack and pinion conversion

Has anyone converted or known someone who has converted their s10 steering to rack and pinion??? Id like to see some pics, find out what rack fits best, and get a basic understanding of the "physics" of it.

Check out this other forum:

http://streetsource.com/forum/topic.aspx?topic_id=87376&Topic_title=S10+rack+and+pinion+conversion&forum_id=19&forum_title=Chevy/GMC%20Trucks