It started on Monday on the way back from work, pulled up to some traffic lights and it just died, tried turning it over but wouldn't fire. Pushed it to the side and gave it a few minutes, it started but wouldn't idle. It's been fine up until today, it wouldn't idle again when stationary and just died when I went to pull into my drive.

I'm thinking something to do with the fuel, but I've stuck some new leads and plugs on for good measure.
Bare in mind she's only done 30k.

Any bright ideas?

Thanks
Ben.