OT: used / refurb voip phones?

A little off topic but anyone have any recommendations for vendors selling
used voip handsets, especially Polycom? Looking for some IP335 or better.

There are only a couple used gear resellers I trust and none seem to carry
Polycom, only Cisco and even those only seem to have low end handsets.


Aastra http://www.aastra.com/products-desk-phones.htm

Thank you and have a nice day,
Anthony Francis