Zurich to Berne - ziggy
Anyone have any tips/experiences on driving from Zurich to Berne/Biel..?

Zurich to Berne - jc2
Biel=Bienne.
Zurich to Berne - JohnM{P}
Keep to the speed limits, especially in the tunnels, as fines can be severe, otherwise straight forward.
Zurich to Berne - Quicksilver
Very easy on major highways. Watch out for the many speed cameras!! No more that 120kph. This is "German" Switzerland so the other drivers are very attentive. I would not expect major traffic issues. Make sure you have a Vignette otherwise expect trouble from the Swiss police.
Zurich to Berne - gbn
I'd guess this is a hire car from Zürich Airport and will have a vignette already.

The Swiss are generally quite arrogant, impolite and downright aggressive drivers, but that's just a different hazard than CLOGs etc on UK roads.