I have a matco 1/2" flex head torque wrench and really like it. It was around $320. And if you buy from any tool truck buy in cash. And always haggle with them. When I buy big ticket item I always like to gamble. Like rock, paper, scissors or flip a coin. Most of the tool guys go for that. Some times you win sometimes you loose. And you always have fun. I actually got a 14mm 12pt shallow and deep impact socket for free when I bought my torque wrench by the flip of a coin.
Oh and never buy any Mac, matco, snap off or cornwell tools online from the website. You will pay a premium.