One of the most interesting new features of FL Studio 8 was the introduction Slicex. According to Image Line, the makers of FL Studio, "Slicex uses advanced beat detection algorithms to slice song/percussion samples into pieces and make them independently playable from the Piano roll or controller."
Image Line has made this tool available as a Stand-alone VSTi so you can run the tool within your favorite host.
I don't really see a need for this plugin for Ableton users considering we have slicing with drum racks, but this might be just the ticket if your using a host that doesn't have built-in slicing.
They are selling Slicex for $99 but it's currently on sale for $79.