Nikon SB900 Used X2 + PWII
Super nice flashes, sync port, incredible recycled speed(on low power I've shot 8fps with flash).
2 of them, used, decent shape. Will come with box/case.
Were around $480 when I got them, each. Didn't get a lot of use as I only used them as slave strobes.
Looking to get $175 each, or $300 for the pair.
Add $50 for a pocket wizard plus II if you'd like as well.