In reply to nodwas: Hi I was a guide/driver for 2 seasons.
Expect to be driving more than guiding!
Guiding is a freebe offered to guests if and when the staff are free enough - airport transfers will always take prioirty.
That said guiding was lots of fun, and I tried to get guests to book me on the way to resort, meaning i was out of driving action that day.
on the down side it means you have to ski in all weathers, which may be fine on a weeks holiday, but when you are there for the season and can pick and chooses when to ski , going out in the rain, while everyone else is in front of the fire is not fun!
one thing is people tend to over estimate their abilities which can lead to a boring day on red runs, or like me, a broken ski pole when someone couldnt stop and crashed in to me, or organising a helicopter rescue from a broken arm for the same reason!
Bacically though its the best job in the mountains,and is a lot of fun if you like talking to random people, so if you can get it , do it. I was in Morzine, so had a big ski area to take people round which meant even people who had been there a lot could still be shown new runs.