Resignation has been handed in, and pleasant 'no fault' discussion has been had. My agency has been informed, a replacement requested, and a likewise pleasant conversation had. (My temp agency consultant's 'off the record' view, getting a permananent job in the current financial situation is a wise move.) Confirmation of my start date at the new job in 2 weeks has been emailed to my new employer.
I'd say I'm good to go!