[QUOTE=KneadToKnow]
Am I correct in thinking that the hardest part would be locating and cutting through the discs between the vertebrae?
[/QUOTE]
Yup. It would take some finesse to get around the facet joints of the vertebrae.
In fact, I did decapitate my cadaver years ago in medical school, with nothing but a scalpel and a little patience.
(It was a planned step in the dissection, the better to study the structures of the head)