Lots of choices out there. For $500, I recommend used. Headphone users are as fickle as other audiophiles, and you should be able to find a $1,000 set for around $500. Without a headphone jack, you'll need a dedicated headphone amp, or at least a junction box (like Stax SRD-7) to drive them. Check Audiogon, eBay and Craigslist.
