My friend Peter recently posted a nice video by 2 Duos, a german/scottish folk band. Gudrun Walter and Jürgen Treyz from Germany who also play in the bands Cara and Deitsch and Aaron Jones and Claire Mann from Scotland. Aaron plays bass and cittern in the band Old Blind Dogs and they both play as a Duo, too.
This video was recorded live at the "Thalhaus" Wiesbaden on 21.11.2010
The band itself has posted some videos worth looking too:
Midlothian Mining Song
Beyond the glen
Saints and sinners
Spike Island Lasses