rahael just posted something about Firefly that made me think (unusual occurrence):
I do NOT want to transpose the Reivers into the Western setting And what I thought of was Cormac McCarthy's
Blood Meridian, a literary Western featuring the horrific Judge and Glanton's gang of cuthroats, whose behavior, including possible cannibalism, was very Reiver-like. Wonder if Whedon's read McCarthy? I know the original Border Reivers were in Scotland but somehow it seems like it ought to all hook up.
Or probably not.