Take a look at target sports as well...much of their ammo includes shipping, which can really add up.
I am a big fan of vendors that include shipping into the price.
I used to be a snob and never shoot steel cased ammo. I am always after precision in my rifles, but I will use steel cased ammo for training purposes. The Hornady Steel Match is good steel cased ammo. I also use Wolf steel cased as well. The only steel cased ammo I'd avoid is Tula...it seems to be the dirtiest and underpowered ammo.
I like buying from The Amory as well since they are in VA. Shipping isn't included, but shipping isn't too expensive and quick delivery.