arivero has "http://www.physcomments.org/node/444" [Broken] the considerable interest the physics community is showing into the new, or revived, field of Ads/QFT model building. It is somewhat similar to Lisa Randall's style of model building, described in her new book Warped Passages, which I recommend. arivero only mentions by name one of the papers fueling the excitement, but I followed it up on the arxiv; it's hep-ph/0501128, QCD and Holographic Model of Hadrons By Joshua Erlich, Emanuel Katz, Dam T. Son, and Mikhail A. Stephanov From the Abstract From the introduction From the Discussion and Outlook One of the things I liked about this model is that it doesn't require supersymmetry; it just does QCD as we know it (slightly simplified). Do go and look at their tables of fits. Of course the point is not that they can tune a model to fit the data; it is that THIS model, though parsimonious, can be so tuned. It deserves the excited attention it is getting!