Guys (and gals), thought I'd share with you some nice deals I found from Shorline Music's closeout page. It's open box "sold as-is" but they should be reputable, since the first time I found them was through a slick deal that was well repped (and they're Colorado based). You might want to call ahead to see if they still have the item for sale. I actually sat on this for a while since the page hadn't been updated in a couple of weeks, but now that it's more or less up to date, most of these deals should still be valid.
http://www.shorelinemusic.com/closeouts.shtml
CONUS SHIPPING IS INCLUDED IN THE PRICE.
HEADPHONE AMP/DAC:
udac2 $59 ($49 for no RCA version)
icon HDP $249
icon amp $89
FIO E7 $49
HEADPHONES:
HD280 $49
HD448 $49
HD595 $89
SRH440 $49
SRH840 $99
Also, if you didn't know, NYC's B&H Photo and Video has tons of used gear, and they have some really nice deals on Open Box (OB) headphones. The stock frequently changes, but some past deals I've seen are V6's for $50, HD25-1-II for $160, etc. The FS/FT forum might have better prices (more often than not) but OB items carry a full manufactures warranty. Headphones you buy FS/FT won't have this -- despite what the seller says in the listing -- since warranties are not transferable.
http://www.bhphotovideo.com/c/buy/Headphones/pn/2/ci/2884/N/4294246780