It sounds like the Extech or Pamona would be higher on the quality scale, but I'll share this, since others may have a lower budget. I was on a tight budget myself, and purchased a set similar to these listed on eBay:
http://www.ebay.com/itm/LCR-Meter-Test-Leads-Lead-Clip-Cable-Terminal-Kelvin-Probe-Wires-w-4-Banana-/261721902334The ones I received came wired correctly and work well, but your mileage / kilometreage may vary. :-)
I have heard that sometimes these cheap probes need to be double checked to make sure that each probe has its two wires correctly separated clear to the tips of the probes rather than connected further up the handle, etc. Other than that, the quality is good enough for my uses,and they have held up.
There are also tweezer style available at similar prices if that is something you consider useful.
Hope you find something that works for you. I'll be watching this thread to see what others have to say. Perhaps there is a better value out there, but for $15USD paid, I think these basic probes are a bargain.
Best Regards,
Eric