Redwolf mentioned the textbook
Gaeilge gan Stró in another thread.
There appears to be an online version of
Gaeilge gan Stró with sample lessons available free for trial at:
http://www.ranganna.com/The sound files contain a range of native speakers from all three major dialects (though it doesn't point out which is which) and only a very small ratio of second-language speakers.
The author Éamonn Ó Dónaill is a native of Gaoth Dobhair in the Donegal Gaeltacht:
http://www.gaelchultur.com/index.php?pa ... =6&lang=en