What kind and how big of cats are you shooting for. I set bush lines and most of my cats are channels and spotted lake cats anywhere from 3 too
6 pounds. I use braided nylon line and a small weight with a #4 circle hook. I also use yo yo reels which work fantastic for fish under 10 lbs.
Bass Pro sells these automatic reels for around $22 dozen. Hang them like you would a bush hook except you dont need a flexible limb to hang them on.