Yourskshire Lass,
Regarding things to do - what are you into? Kintyre is certainly suited for the outdoor type and a lot of these are covered in the site but I need to work on this and will, through time, get there.
Muasdale is an ideal location - on the west coast and within easy distance of everything north, south, west or east!
You can catch the ferry two miles north of there at Tayinloan to the Isle of Gigha which is well worth a visit. Your 15-20 minutes away from Campbeltown and the south of Kintyre where there is plenty to do....
Depends what you like doing I suppose but it is well worth the visit!