I have an RFXCOM USB transceiver, some sensors and wall sockets I no longer have a use for. These integrate directly into openHAB with the RFXCOM binding which I have been doing for the last 2-3 years. I have migrated to some different sensors now so no longer need the RFXCOM stuff.
* 1 x RFXCOM USB Transceiver
* 2 x Oregon temperature sensors (one is temp only, the other is temp + humidity)
* 4 x UK HomeEasy wall sockets (all bar one with UK-NZ adaptors)
Would take $100 incl. shipping. The transceiver cost me 100EUR from memory so this is pretty reasonably priced I think.