Ditto for most of the info here.
3/8 drive for inch pound, 1/2 inch for foot pounds.
Forgot the "bar" type, spend the bucks on a "click stop" wrench.
As mentioned, most 1/2 inch drive wrenches start the scale at 20 ft lbs. which is 240 in lbs.
Most 3/8 in lb wrenches go as high as 200 in lbs, which is 16 ft lbs.
So you can see you have a "gray" area here.
In Harley's "FREE" torque value book (p/n 99959-05) many torque specs start between 16-20 ft lbs, and one in particular rates the starter mounting bolts at 14-18 ft lbs! Which wrench do you use?
These are common numbers, going to high end like Snap On and Mac will give you a much greater variety of ranges.
If you are just using this for your own work and want to be satisfied with the work you are doing you should be fine with the Craftsman series of click stop wrenches.
Stated degree of accuracy is relative, eg 1% 4% accuracy etc. A 4% accurate wrench will be acceptable for most torque vales listed for a particular fastener, eg spec calls for 25-30 ft lbs., stay in the middle with your wrench setting and you should be good to go.
The key point is that multiple fasteners are torqued to a consistent value.
If you don't mind spending the money on tools buy the Snap On, you won't be disappointed, but for home owner use the Craftsman is fine.
You'll probably find that once you start using a torque wrench consistently, that prior to, you were probably over torquing your fasteners.