[STCrowley]

I don't know about the British version--I'm American. But I do sense a slight difference in meaning. If I'm going to talk to someone, the conversation is mostly about what I have to say. (I mean, it's one direction, FROM me TO the other person. The phrase "to give someone a good talking-to" comes to mind.) When I talk with someone, I imagine the conversation being much more 'equal,' what they have to say is as important as what I have to say.

But, I'm afraid my answer has just made things less clear, not more clear. Hope it helps, some, though!