What? How much?
You can be pretty sure that the company conducting this research wouldn't offer their services to an organisation of the complexity of the BBC for much under half a million. So by not using them, they are saving us nearly £250,000 a year.
You can bet most of those £1500 laptops were shiny aluminium, fruit flavoured ones. Those luvvies have to express their individuality you know.
Whatever they were, I do hope they're not including the cost of licences. I would hope they have site wide licences for most of their software, so the net software cost of one machine going out backdoor and another being purchased would be zero.