I Think Fallout Tactics had a good idea coming to traders and it would defiantly help a lot for the traders in FOnline.
In Tactics, when you went to a trader and started throwing your stuff at him, the game would instantly throw the currency back at you of the same value.
After that, if you didn't want all money and wanted that shiny shotgun he had, you could take it, and place it in his area and it would remove some of the money he was about to pay you for your loot,
but the shotgun and money left would be equal to whatever you were trying to give him. This would make playing a Character that doesn't specialize in barter much more sane when we are actually trading.
Another Thing from Tactics, is when you went to put something down, trade something, or anything, it would do the full amount, like If wanted to give the trader all of my iguana sticks,
in FOnline I would have to place it, and type the number in manually, where as Fallout Tactics, it would start out wanting to give all your sticks, but Like the other Fallouts if you only wanted to give half if you started
typing it wouldn't add to your maximum it would start at the beginning, all of this would make bartering and other things more likable in the wasteland.