Brewmasters Warehouse is my favorite resource. Really great guys that work there and they are some good prices. Best of all, they are right here in the Atlanta area too.
I assume you don't have a LHBS around you because that would be your best bet. From what I have heard about some online retailers is the lids don't always fit perfectly. Buying at your LHBS, you can test it before buying it. Plus it supports your LHBS which is always good. But if you don't have one then online is your best option lol
$17 for good bucket and lid isn't terrible. Buying 6 of them will get close to $80 at a cheap site.
When I buy my equipment, I personally would rather pay an extra few bucks to know I am getting a good product.