I know this is an old thread, but here goes....
The answer is really defined by whether you want to keep the client or not but remember a client who doesnt pay is worse than no client at all, as you have outlays to pay.
I would suggest you look at going down the small claims court route. This is a very easy and cheap route and generally people will pay when they get the court papers.
On the other hand, if its a small amount you could write it off and chalk it up to experience.
Kris
