Quexos: (guess I'm a few days late here)
You've come to the right place. However, a couple of hundred pounds may be a bit of a stretch. [And in fact, we've moved on to the next greatest thing, and we're not doing anti matter any more; it's old hat. Ya have to go to CERN for that. But anyway ... ]
http://www.fnal.gov
Fermi National Accelerator Laboratory [protons]
We're now specializing in neutrinos. Go to Minnesota or South Dakota if you want to catch what we're throwing. (SD still under construction. MN just starting up, I think)