British Airways is in the process of launching its Summer sale, and the fares look pretty aggressive – certainly more so than I’ve seen for a couple of years. There is no simple list at the moment, but if you use the Low Fare Finder tool on the website, select Business / Club and click on the relevant region then you can see what is (theoretically) available. £1,200 return to New York is an exellent deal, as is £1,189 to Calgary and £955 (£955!) to Miami.
Asia and Africa fares are less interesting, unfortunately.
It is also worth checking for sale fares on British Airways out of Europe, especially ex Germany, Netherlands and Rome. You need to factor in the time and money taken to get down there to start your trip, but fare savings and extra Avios and tier points may be enough to swing it for you.