[myamoto1]

+1 on the SmartWool socks. To Vash's original question - I prefer fleece. As others have said, which fleece, depends on the conditions you expect to be in. I have micro fleece (100 weight) pull-overs all the way up to 400 weight jackets. However, I've mostly settled in on a light poly-pro base, with a mirco "mid" layer, followed by a 200 weight vest then a waterproof outer shell. This keeps the core warm, but allows your arms to move more freely. If it's going to be super windy, I'll use my windblock vest as part of my mid-layer.

Also, as Grant (Tishabet) mentioned, pit zips are great to have. Essential in my book. You can really regulate a lot of your heating/cooling needs w/ the pit zips.