Colder months are the best months, no freaking bugs!
Look into some water-proof socks, I love my Sealskin ones. Picked them up for ~$30 on Ebay, and work amazingly well!
Dry feet = warm happy feet.
I would say 2 sets of camo, one green and the other tan. Get some good wet/wind weather layer. The weather can eat a lot of players up quick.