yeah, i hear pearl izumi has some great socks that can save you up to 50 watts...

nah, i just wear regular old athletic socks. works fine for me. also, i have shimano sh-132L shoes and really like them. some great prices online make it a really good value IMHO, but i don't know what your budget is. but as everyone else said, the most important thing is fit and comfort. try some on and figure out what size and kind you like.