Cameras and Cold Climate

[Pumpkinstew]

I'm off to northern Sweden in a few weeks and will be taking my cannon powershot bridge camera along with me.

I was a bit worried about how the camera might cope with firstly the outside climate (could fall to -10) and secondly the transition from very cold to back into a toasty warm lodge.

So anyone here got any advice for this sort of climate?
Is there a big risk of condensation?
What can I do to prevent it?

Also any general advice for snow and night shooting appreciated.

 

[Pumpkinstew]

Thanks for all the advice. Just what I was after.

Hopefully I'll come back with some nice shots now instead of whited out images and a broken camera.