No one mentioned REI?
I have always had good luck with them. They have a rock structure you can try your shoes on. I feel that really helps to make sure your toes don't hit the front of your boot!!
They are also good at choosing a boot that will be appropriate for your hiking. What weight you are carrying? What terrain to choose your soles?
Goretex uppers for breathability, wicking and waterproofing.
I would also pay close attention to your socks. Maybe some liners under your socks. I sometimes wear silk liners??
I would go somewhere that has a knowleagable staff. Nothing worse than having blisters 5 miles out....
many new boots require little break in time nut I think it is wise to get them early and use them when walking.....Good luck