Im not a huge Luftwaffe fan but I do like "Die Luftwaffe Marsch" which is a pretty nifty tune. However, I like Die Panzerlied and most of Die Infanterie songs the most. If you want a Very good Cd that has all WWII German songs on it-sung by a former WWII Fallschirmjager, I forget what it was called in German but, in English it is called: "Songs we once sang." This one can be bought at:
Brandenburg Historica LLC: Books, Music and Military Collectibles This place has one hell of an excellent selection on German wartime/marching music.