Except for today I think snow specific tires are overkill, if you're down in the front range area, and would wear out on the gravel pretty quickly.
I'm definitely looking at some new tires as well, but primarily because I need wider tires than came stock on my Boone.

The tires that have been suggested to me are:
[TABLE]
[TR]
[TD]Continental Winter Top contact[/TD]
[/TR]
[TR]
[TD]Continental Cyclocross Speed[/TD]
[/TR]
[TR]
[TD]Continental Cyclo X-King Tire
[/TD]
[/TR]
[TR]
[TD]I'm currently running the Bontrager CX-3[/TD]
[/TR]
[/TABLE]