Hi guys,

Budget : 400++(can cash in extra if worth it)
Using : previously Sony NWZ-B135FBLK 2GB
Listens to - Pop, Dance, Club, R&B, Electro
Formats - Mp3 mostly, FLAC in future??
Size - 8GB or bigger

Usage : before sleeping, in office, in car, +++

Extra Requirement : i am a bass freak, but at the same time would like to have best sound quality.

Currently surveyed Sony products, heard good comments about Cube C30, X19HD but worried about the battery life, product quality and many more. So, any recommendation?TQ