Ed:
I've always found that too much insulation is a handicap. I prefer to layer my socks (thin layer poly pro, thicker layer smart wool or similar) to match the temperature, rather than worry about over heating.

Of course this is also dependent on how much your feet sweat.

My current favorite boot for sheep and goat hunting in Alaska is the Canada Hunter sold in Cabela's.

I use the highest ones they make (12 inch?), and they work great in swamps as well as rocky mountain terrain.

The only draw back is that they tend to squeak a bit. This may have more to do with my aftermarket laces that the actual boots, but I haven't had time to test it out yet.

<img src=icon_smile_tongue.gif border=0 align=middle> If You Ain't Hunted Alaska, You're Still Just Practicing <img src=icon_smile_tongue.gif border=0 align=middle>