What sort of power are you looking for and do you want an adjustable objective? Lots of decent 3-9 variable hunting scopes on the market in that price range. If you are talking something more like a varmint rig your choices really narrow a bit.
I have been hearing really great things about the
Mueller 3-10x44 Tac II Riflescope . I own a mueller 4-16x50 with mildots and am very pleased with it. And from what I hear the Tac II has even better optics. No adjustable parallax though.
Paul