Quite some time ago I bought myself a
Precision C4D600F split beam torque wrench from the States. I believe that these are identical to the Snap-On wrenches and normally cost pretty much the same.
My advice... let your fingers do the walking. From memory I got mine when I found a stupid cheap special on them and it cost me about AU$250 (delivered), which is significantly less than the advertised US$600 RRP. The guy I got it from was selling the imperial version, but I convinced him to order in and supply the metric version at the same price. But before you ask... no, I cannot remember exactly where I got it; sorry.
I should also add that not all torque wrenches are created equal.
The wrench I have can be set at the desired torque setting and left there while in storage. With some other brands/designs you must back off the torque setting, or the calibration will be affected over time.
Also be aware that these suckers are definitely not small. Mine breaks down into three parts, but the blow-mould case is still about 700mm x 200mm x 100mm.