OK, to start, statement of interest: I'm looking to start teaching private lessons and I was interested in what was considered a 'fair' rate.

I'd like to stay away from my usual rant about 'unqualified teachers charging extortionate rates and eating live babies while forcing students to dance to Eurovision classics' ... so lets start with the basic proposition:

The teacher is 'competent', but not in the S&N, N&N league
Students are competent intermediates
Rate is for teaching only, not for venue or add-ons like video etc

So ... what is a reasonable hourly rate, thoughts? How could a teacher improve the value given?