I’ve just finished up my CD “Boundaries Of Infinity”, almost entirely made with Ardour. Ready for download on Jamendo: http://www.jamendo.com/en/album/36087
The first track was even made with Ardour 0.93 (or was it 0.91?), on an old Powermac.
One track (no. 3) was however made with Garageband, as a tryout.
Other tools in the making were Audacity, JAMin, LinPlug FreeAlpha, Hydrogen, Mulab, CrazyIvan.