Trilby,
are you working as a tied agent or independent adviser?
If you are tied I'm sure the companies you are associated with will be able to give you advice.
Do you have an office or will you be working from home? Working from home will cut costs but you will get no walk-in trade.
You'll need to use the usual suspects, yellow page, local newsletters and a website etc.
From what I've heard most of the leads will probably come from social occasions or by word-of-mouth. Get working on the golf handicap!