places to find used commercial brewing equipment?

[size]

anyone have any idea where I could go to browse used brewing equipment. looking to purchase a 3.5bbl system in the next year or so, and i thought i'd start looking for the pieces now.

any input would be very much appreciated.

 

[elserpien]

probrewer classifieds:
http://probrewer.com/vbulletin/forumdisplay.php?forumid=26

 

[flapjack20]

You can try this one too:
http://primaryfermenter.com/

 

[oregonparamedic]

www.agertank.com