Are you looking for a real job scheduler? If so, it might be overkill, but you might want to look into software like Sun Grid Engine, Torque, or Condor (there are quite a few other schedulers out there). If those aren't what you're hoping for, perhaps you could give more details about what you're trying to accomplish.
Based on John and Les's reco for a different cluster need, I am reading up on Torque etc now, but this just a trivial need I want to plug asap. It really is as simple as I wrote out earlier, multiple servers ssh a background job at nearly the same time consisting of an rsync command. The destination host for this target gets overwhelmed with more than one at a time...
Thanks, jlc