gyladene, it is not much different than a SW interview in the US. You may have to write a brief case report. It REALLY helps if you know UK terminology and legislation. Most employers hiring international workers know there will be some catch up time so no worries to know everything, but it does impress them. Back to the interview they may ask things like your experiences, how would you handle a case etc. Nothing really struck me as extraordinary.
Good luck!
Congrats Joshua! Good luck getting all sorted when you first arrive. Good thoughts to you. I highly advise several days spent getting your life sorted before starting work. It's that whole heirarchy of needs theory! You will be surprised how much you can accomplish in a week.
smcjbc, I've passed through Croydon town multiple times on my IKEA trips. It is HUGE!!! Tall buildings, shopping areas and great transportation links. Do you know where your office will be and where you will be looking to live?