I buy from, Saltwater Critters, The Zoo, Oceans Gallery 2, Petco (Yes that's right), and any other place I see nice looking livestock. I prefer the vendors here and my LFS.
On a side note any LFS bashing and this thread goes bye bye. Thanks and Happy reefing!
Mail Order it is really hard to beat Live Aquaria Divers Den and they support MR too. Locally, lots of MR vendors and supportive local shops have great fish as noted above.
If I buy fish online its liveaquaria everytime, Its tough to beat a 14 day guarantee. I have had two fish die from them and they refunded me no questions asked.
pet shanty on rt 22 i rarely quarantine when i buy from him he keeps copper at all times in his system very rare to get a fish with parasites from there also absolutely fish they pre quarantine all their new arivalls in hypo treatment in the back before puting them in the displays ocean gallery is not bad but they carry a lot of ich on most of there fish