The term "tactical" leaves a lot of open territory these days. What precisely will you be using it for? By tactical, do you really mean more of a utility/defense knife, and if so, what are the utility jobs?
In general, for $150, I'd start looking at some of the custom makers, and design exactly what I wanted. Newt Livesay seems to have plenty of knives in this range and is spoken of very highly on these forums.
Joe