I don't have any specific recommendation but broadly speaking I would suggest keeping an eye on local colleges/universities or medical facilities. For instance one of the schools near me does a garage sale every spring... they usually will have things like chairs, desks, IT equipment, all that jazz. It's all used stuff of course, but typically is in really good shape and it's stuff like desk chairs with 65 different ergonomic adjustment levers that cost $900 taxpayer-funded dollars when purchased new, but now the budget's there for some new chairs so out with the old and in with the new....
But in all seriousness, shopping for used "business" or "enterprise" type stuff is a good bet IMO.