I ordered the Mid-Weight Baselayer from F&S. It was the best deal and allowed my to use the rest of the gift card to buy other necessary essentials. Plus I figured if I didnt like it, they offer free returns and I can look again at Cabelas/Bass Pro.
I've been wearing Coldpruf from Campmor. I am 6' 1" with long legs and they have tall sizes in their bottoms which fit me perfectly. They have a lightweight, mid weight and expedition weight, the mid weight seems to work best for me. Price is good to at $12.99.