Gents, I don't venture in here as a rule, so please be gentle with me. 
We need to replace the tyres on my wifes 04 Focus (1.6 Zetec). I've been told that savings are to be had by buying tyres on-line and then getting a local garage to fit and balance. Rather than paying them for the tyres/change as a job lot.
Question is, is this correct; and if savings are worth the hassle, could anyone recommend an on-line tyre seller?
Thanks in anticipation.

We need to replace the tyres on my wifes 04 Focus (1.6 Zetec). I've been told that savings are to be had by buying tyres on-line and then getting a local garage to fit and balance. Rather than paying them for the tyres/change as a job lot.
Question is, is this correct; and if savings are worth the hassle, could anyone recommend an on-line tyre seller?
Thanks in anticipation.