My biggest hope is that this show becomes the impetus to get the original Blake's 7 released on DVD in the U.S.
I'd say go ahead and import the R2 DVDs they are excellent in every way aside for the packaging (it's cheap cardboard foldout). All you need is a player that can go region free and convert from PAL to NTSC which shouldn't be too hard this day and age.
Oooh - howzabout Marena Baccarin as Servilan!
I was going to suggest Rebecca Riggs.