Just last week the same thing happened to me. I was expecting a 10 minute tel interview, and found myself in a full interview with 6 interviewers, which lasted 1.5 hrs! They too have asked for references and I have a video conference interview coming up.
What is so strange, is 12 months ago agencies did not want to talk to me or put me forward to their clients. Now it feels like everyone wants us - makes a change :P
I'm also in IT, and all my friends and family have no idea what I do for a living either.
We are moving to Wellington, what area are you guys looking to make home? (doesn't that just sound the best!)
Good luck with the next stage.
Cheers,
Rob & Jennie