I'm a bodhran/celtic player who plays congas - never crossed the two but recently picked up doumbek - I've brought it to a regular session and it seems to work.
Not what you asked but I've got a feeling replies will be few.
Forum member Vincent Salzfas plays congas in a folk band called Gigspanner, but they have absorbed influences from all over the world, not just Celtic.
Thanks about info.I m bodhranplayer too, also playing Uilleannpipes,Great highlandpipes,Galician gaita and borderpipes. Salsa celtica, really nice fresh mix of totally different music cultures