I wonder if there's anyone here who can help me with the following situation:

I have money in a US bank account that I need in a UK bank account. I am physically in the UK and not travelling to the US anytime soon.

My first thought was to use a currency transfer service to get the best rates. That seemed reasonably straight-forward -- send the money from my US bank account by SWIFT transfer to the broker, then by CHAPS to my UK bank account.

One problem. My US bank won't initiate a wire transfer without me physically going into a branch in the US to sign off the paperwork. Which is tricky.

So -- can anyone recommend another route to get this transaction completed? A currency broker who will accept a US$ check drawn on a US bank account as a funding source? I don't mind waiting for clearance time (provided it's reasonable).