Right on, yes we have something like that in development, it's an Auction room in Sol:
http://forum.astro-galaxy.com/index.php/topic,8159.0.htmlThere is also this:
The SOL Corporation announced the completion of a new Commodity Exchange station in the orbit of the planet Delta Alpha Centauri, within the Alpha Centauri star system. There is a need for Medicines, Food supplies and Electronics and they renew the order every 6 hours, providing great trade opportunities for starship captains. Just drop by and dock with the station and check out the buy and sell orders.
And more stations will appear as Sol expansion goes on...