Believe or not, the Harbor Fright torque wrenches are pretty good. I've cal'd about a half dozen of the 150 ft-lb 1/2" drive units & one each of the 1/4 & 3/8 drive units. All were with in the +/-4% ISO & ASME spec for wrenches. They are a chinese knock off of older model Utica wrenches from the early 90's. Other than the gritty feel, they work the same. I have one of each in the tool box since I'm a DIY person, but if I made a living at turning wrenches, I'd use Snap-On.
As far as beam type wrenches, they are accurate & you can still get them in ft-lb models, but they are a total PITA to use.
The sorriest torque wrenches I've ever worked on are the "digital" Craftsman wrenches.
Craftsman Digitork Torque Wrench, 25-250 ft. lbs., 1/2 in. Drive - Model 44597 at Sears.com