NETTE has an auction coming up on August 14. My experience with these folks has been extremely positive. Very honest, forthright and prices that consistently seem to reflect reality.
It's an auction, yes, but the prices aren't typically in the stratosphere.
There is a little standard gauge in this auction (it's mostly toys). I'd love to buy all the Buddy L trucks I see but this standard gauge needs pantloads of room!
Also, you may want to check out the NETTE auction coming up on September 4th. That's going to be the big train auction!