Have checked out VbRO and found a place that seems really good.

But how can I be sure they're not dodgy? I've emailed them and they emailed back, and there's photos online etc. it's just it's an awful lot of money.

Fortunately they only ask for a refundable deposit to hold the dates though and then pay 2 weeks out. Is that normal?

Hmmmm. I think I have trust issues.