Which torque wrench?

Considering:

Low torque:

• Park TW1/4 Beam 0-7 Nm, £40
  
• Park TW5 Ratchet 3-15Nm, £96
  
  

High torque:

• Park TW2 3/8"Beam 0-70Nm, £46
  
• Park TW6 Ratchet 10-60Nm, £110
  
• Draper 34570 Ratchet 3/8" 10-80Nm, £17 (how can it be this cheap?)
  
  

I know there's other ones out there, Shimano, Cyclo, IceToolz.
The Park beam wrenches seem overpriced for what they are. Also not sure if Park is the word when it comes to torque wrenches?

Which ones are suitable for a home mechanic? I don't mind paying a bit more for a quality tool that is accurate and will last.