going to be looking at a mates 2004 focus, from whats been described it sounds like the powering steering pump has gone..  high pitched noise when driving, no powersteering, leaking fluid onto wishbone..

 

anyone any experience of this, done a few pumps and racks on vauxhalls, first focus

Perhaps find the leak first, no point changing the pump if the leak is still there. See where the car is dripping....look for pipes over the wishbone.

Also, is it petrol/diesel?  Engine size?

Not all variants are the same.

1.6 petrol auto , cheers

its leaking from the switch/sensor at the back... new switch and oil top up might be worth a try first eh

yae or nae lol

I'd say yep. Cheaper and easier.

Son had similar on a fiesta, the garage quoted new pump & pipes so he just kept topping up & left it, went back 6 months later to the same garage and the same guy said it was the switch. One new switch later and all was well.