Thanks to you both for you thoughts on this matter.
Steve quite rightly directed me to the website, but as we have now both discovered, nothing has been posted since March 2004. Grateful for that Steve. We will just have to hope that something is forthcoming sooner rather than later.
To clarify for Mr Ling, I was not aiming this at the Dinamap type of monitor which we all have lots of experience with, but the type you can buy for £50 - £100 that claim to be A/A rated and are fine on a simulator, are accurate but are not so good on real patients.
Thanks
Graham