What kind of "bush" knife are you looking for? You're not going to be able to look at a Busse within your price range, but IMO they're the best fixed blades on the market, that said, they don't scream "bushcraft" at me, although I have made fuzzies with both a fat ash-1 and fat fusion battle mistress. A mora would be a lot more effective. That said, they make the best choppers around. Bark river makes some excellent bush knives IMO, and the Bravo-1 is one of my all time favorite knives, but it all depends on what you want it for. It's hardly a chopper, but can chop in a pinch but mine came with excellent geometry and a razor edge that holds great. You're looking at more money though than what you're looking to spend.
Check out the custom maker forum, I really like the look of JK knives quite a bit although I haven't tried one yet, but it's in my future.
For production in your price range? Rat cutlery.