I recommend Tristar Trumpets

I bought a Tristar trumpet for less than $100 2 years ago, and it works great. I was worried with a lot of people warning me not to buy the economical trumpets online, but I have been pleasantly surprised.
I now recently upgraded to their professional model costing me about $350. And I have been even more pleasantly surprised, because this is none other than a Besson trumpet with stainless steel valves (700 series I think) with the original Besson case! I just realized that they are OEM suppliers to large brands, and have access to the R&D and know how of all these large brands. No wonder Tristar can make good trumpets for $100 without having to spend on technology.

They also have good cornets, I plan to buy one soon. I shall post my comments once I have used them.