There was a thread on here a while back concerning CLA effectiveness; the search engine won't let me find it, though.
CLA is often heralded as an effective stim-free fat burner, as well as having a host of other benefits:
http://www.nutros.net/nsr-0202l.htmlIIRC - the discussions on here mentioned that there are different sources of CLA, and the one that supplement companies commonly sell in capsule form can actually be harmful to your health.
Again, I don't remember the details, but I believe that Princess & SMM were involved in the discussion, and you can rely on information those two post.
I believe that Necrosis once mentioned that sesamin oil is an effective stim-free lipolytic agent.
Suckmymuscle will probably have
(or can find) the most current data on both supplements.