You don't need a dedicated program like BFD to have "real" drums or percussions: if you happen to own a workstation like a Kronos (or a Motif for that matter) or a module like the Roland Integra-7 you are set from here to the eternity.
The pair PA3X-Kronos offers the advantage that many drum sets in the Kronos are already matched for the PA3X, so you don't need to remap anything: just connect the midi out of the PA3X to the midi in of the Kronos (in Combi mode), select a drum kit on channel 10 and you are ready to rock the house. You could also have the PA3X drive one of the amazing bass sounds of the Kronos, but that would be overkill...