I just purchased Sennheiser HD 600. Really good sound. Very detailed, flat and full even at very low volumes. You could pick them for around $310 - $350. I found at least 5 web sites in the $320 range, most sell them for $350, but I got mine from J&R for $315 after some armtwisting... eBay auctions a pair right now for $260 unless someone raised the bid in the mean time... Good luck!
