Thanks
Here is our timeline...
05 Feb 2014 Electronic application
10 Feb 2014 Biometric appointment
10 Feb 2014 Purchased priority processing
10 Feb 2014 FedEx'd Documents To Sheffield
12 Feb 2014 Documents arrived at Sheffield
13 Feb 2014 Visa application precessing email from UKBA
27 Feb 2014 The vague "decision made" email from UKBA
27 Feb 2014 Passport and paperwork FedEx'd from Sheffield
03 Mar 2014 Passport with visa received (and original paperwork/evidence) from FedEx
We were expecting a letter in the pack we got back along with the passport (plus visa) and paperwork, but there was nothing. My wife enclosed copies of everything we submitted, which they kept. They didn't appear to look at some of the original documents as they remained tidily paper-clipped together, but my P60 and our original marriage certificate was a bit worse-for-wear. We are so pleased we got the visa though.