My thanks to the Royal Cornwall Hospitals NHS Trust for sending me this document, which details the range of services available to you if you don't have time for that "free at the point of delivery" stuff which politicians spout when they want your vote.
It's a menu-with-prices, offering pretty much everything from botox injections for £193, amenity beds for £75/day (£97 if you want en-suite) all the way through to major inpatient treatment for several thousand pounds. The RCHT is now touting for business from private patients on its website.
The 2010 RCHT accounts show income generated for the Trust from private patients was £660,000, which of course was re-invested in the National Health Service. And of course there is nothing new about the relationship between the private healthcare sector and the NHS. But have a look at the Excel file - I think it's fascinating what you can get from the NHS (more easily) if you can afford it.