I use cakewalk as my daw and it has a drum replacer for wav, though I haven't tried using it before. I'm getting by fine on superior drummer 2 and my roland handsonic as a midi controller with midi snap in cakewalk. I'll give TuxGuitar a look, I tried GuitarPro but found it a bit too clunky to use to just play along with tabs I found on the internet.