London Perl Workshop
I managed to herd three large (huge! even) corporate cats sufficently to organise a conference call in which, and this shocked me too, they agreed fairly rapidly to all hire Mark Jason Dominus for a day each to talk about Higher Order Perl
Why did I attempt to do this madness? Because he agreed that if i could get him 3 days worth of consulting in London he'd speak at the London Perl Workshop.
Bonus!
Except that I can't find a venue. My first two hopes - Imperial College Union and St Mary's both fell through. My current hope is the appropriately named The Conway Hall. Fingers crossed.