I loved the Two Tone revival although my favs were The Beat and The Selecter at the time rather than The Specials and Madness. I don't know how many times I have seen The Beat and I notice their back catalogue has just been re-released.
Saw all these at their height and The Beat (at Moles in Bath 1980) was one of the best concerts I have been to up to now. I would love to see them again but would miss Dave Wakering. The best recent ska group I have heard and loved are The Dead 60s. A brilliant mix of the above groups.