i like listening to downtempo while cubing. maybe i should hear death metal due to the frequency of the double base drum
you guys should try out 'thievery corporation', really great band.
try out classic music as well, it creates a complete different feeling while cubing.
I would highly recommend fast paced drum and bass music for when speedcubing. I always listen to Concord Dawn (New Zealand band). It really gets a fast rhythm going and you fingers try and keep up, it's really hard, but motivating.