Temperature Limits for Dobs Reflectors?

I've been researching my first telescope purchase -- I'm a real newbie. I'm leaning towards an Orion XT, maybe with their Intelliscope GOTO system (either the 6, 8 or 10).

The question I have, which I haven't seen addressed anywhere, is whether the telescope (especially the mirrors and the electronics) will function effectively (or be damaged) if used (or stored) in extremely cold conditions.

I will primarily be using this equipment in northern Minnesota, where temperatures on clear, dark nights can be near freezing in May or September -- and can reach 30 or 40 below (F) in the winter. While I probably won't want to be out observing very often when it's below 0, should I be avoid this completely? What about storage -- do I need to figure out how to keep the equipment from getting too cold?

Thanks for any advice you can provide!

--David Allen

The optics and mechanical stuff should be OK. I think
the primary is mounted in big rubber pads, so
expansion / contraction not much of an issue there.

The electronics will not like extreme cold,
especially if temperature is going up and down daily.
Parts on circuit boards can work loose due to
things expanding / contracting by different amounts.

Some plastics and rubber materials can get brittle
in very cold -- depending on exact formulations.
Try not to stress anything too much when its 40 below.