yea as much as i hate people who do this...
go to your local ski shop and try on a couple different pairs of boots and have the tech fit you for your size until you find the right boot for your skiing type and the right size.
then just give the guy like 20 bucks or somethin for his time and thank him (alot) then go home and order that boot offline.
if you know what your lookin for you can get some pretty dope deals on the internet on boots. ans skis for that matter.