Now I have not been able to watch this all the way through but this is the procedure i will be going through, though one difference is that i will be awake through out the whole procedure, where as in america you are asleep while they open your skull.
Can understand if you do not want to watch this.
also a link to a rough guide to what i am having done in romford on the Southampton NHS site: http://www.suht.nhs.uk/OurServices/Nervoussystem/Neurosurgery/Diagnosisandtreatment/Braintumours/Awakecraniotomy.aspx