The obvious one for me would be Oracle themselves and the friendly contact I would start with there is Sylvia Harley (you remember her of course Geoff!).
Another one to ask too would be Betty Kagan (again at Oracle she should know of more global customers).
I'm working at one right now but I'm not sure whether they would talk to other customers!!
Hope that helps!
Caz
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Working with the terminally stupid in middle east! Hoping to escape soon.