I have been shopping with These Guys for a while now.
I have never bought any "Livestock" from them, but I do get my fish food and aquarium supply's from them. (Well over a dozen shipments from them and never a single problem)
I'm a big fan of http://www.livefishdirect.com/ Great quality stock, fair prices, and shipping/packing was A+. You can even select the day you want your fish to arrive.
live fish direct has sent out hybrids, dont use uncle neds, dont use aquq bid unless the seller is known personally by some one you trust, i would go with rare dave, jeff rapp also has a stellar rep.