I am basically storing my car for the winter and I was curious how often I should turn the car on and run the engine and for what duration?

Is it going to be outside or in a warm garage?
If it's going to be outside I'd almost say just go all winter b/c all of those super cold starts could end up being worse than just not starting it at all.
Cold starts in cold weather is when your engine sees the most wear.

I'm not a mechanic so I could be wrong or be forgetting about some other important factors.

http://www.totse.com/community/showthread.php?t=2158036