It'd definetly worth spending on the headphones, improoves the sound no end! I've bought a pair of Sony MDR-EX71SL to pair with my shuffel partly becuase they are white and match the shuffell nicely but also becuase they sound great, they have these little rubber gromits on the end which when rammed into your ears propley create a seal and improove the bass loads and also cuts our the rest of the worlds noise (have to watch out for traffic a bit more now though!) . They dont sound quite as nice as my full size pair of Beyer Dynamics DT331s but then thier a bit on the large size to wander around the streets with...
I break stuff.