Thanks guys.
When I used to live in Perth I always used to borrow a mates stihl line trimmer, can't remember the model but it was a commercial grade unit and very good.
The thing that always annoys me with line trimmers and I don't know if this is just me but one seems to spend 5 minutes trimming and 15 minutes mucking around with the line on the spindle as it gets stuck, loading more, feeding more etc