I am a huge fan of both Teko and Balega. Teka has socks (including wool) for a variety of sports. Balega is more centered on running but their trail running socks might be perfect. I love both brands

http://www.tekosocks.com/index.html
http://www.shopatron.com/home/index/423.0.1.1

I find that I'm only buying SmartWool socks for skiing or casual wear, but I'm going to invest in some Teko ski socks this winter.

I know TE carries Balega but not sure which models.