Thanks, nun. I think I've got it now. On my consulting work, I will report the income in the UK and pay UK tax on it, even though I will be accepting payment in US funds in the US. If I move those funds to the UK (by a wire transfer, for instance), that won't trigger any additional taxes or fees or fines or whatever (beyond the bank fees).
Although my consulting business isn't large, my clients are all anxious that I should continue providing them with services after we move. Before I commit to doing that I want to make sure that it's not going to cost me so much that I'd be better off not doing it.
Again, I really appreciate the help. As we make our way along this process I so often feel as if I don't even know the questions I should be asking!