The site MeshBodyAddicts.com has new reviews and comparison charts of the mesh bodies available in Second Life. So, if you are shopping, this is a good source of information. See: Reviews: Isteni, Tonic & Dude SLink!
As of now there is no Render Complexity Information in the reviews. With the Complexity Feature on the way (See Quick Graphics viewer in Alternates) I think this is a huge oversight.
If you have wondered about the Omega Applier, see: Omega Solutions.