ritebrew worth a look too...
I have to agree if you live in the Midwest Ritebrew's shipping is stupid fast. I ordered fittings, tappers, keg connects etc.. for a 3 tapper keezer build and got the item the following day using their Speedee shipping method. Best part was it was the shipping cost was discounted to just under $2.
Everything I find on there is really hard to find another vendor with a better price if they you can its usually a minor difference.
There are gaps in their catalog in that they may not carry as much as another vendor in those cases I purchase the items elsewhere. But for 90% of what I'm looking for they are my go to vendor.