i shouldn't egg Shane on, but i can't help it: i heard through the grapevine that one of the Nobel laureates fears that LHC will ONLY find the Higgs and nothing else, and he conjectures this will put physicists in a very awkward position.
ahhh, he did go public:
"Many of us are terrified that the LHC will discover a Higgs
particle and nothing more," Weinberg said. That would just confirm
the standard model, which everybody believes already. It would not
point the way to further progress in solving a deeper problem that
physics faces---how to add gravity to the unified theory of the
other forces.
http://blogs.physicstoday.org/newspicks/2009/10/higgs-discovery-likely-at-lhc.html
Les