The NWZ-ZX2 needs no introduction from me.
What makes it stand out in my opinion is the battery life, which is better than anything else at all, BAR NONE.
Version: Japanese, with no volume cap
This is aimed at UK/EU buyers—remember that non-EU pricing doesn't include 20% taxes, etc.
Condition: Great. No scratches or dinks. In original box.
Sony stock leather case
Stock USB charge/sync cable
Longer USB charge/sync cable