I'm getting back into the gigging business and am looking for a good set of practice headphones. Sound reproduction should be decent enough for me to HEAR what I'm playing along to and noise isolation should be decent enough for me to NOT HEAR what I'm playing haha. I'm looking for a balance here, not the best of both worlds. By inexpensive I really do mean downright cheap. Under $40 would be ideal (not getting rich here). I guess I'd say the noise isolation is more important than the sound reproduction but I'd still like it to sound pretty clear. Any suggestions in my meager price range? Thanks in advance.