I have no problems with smacking, in certain circumstances.
Yes, there are other ways to discipline a child, and they should be explored before smacking is considered.
UNLESS the child is in danger and a short, sharp shock of a smack on the hand or backside is the difference between him being safe and him injuring himself. i would rather a sore hand than a burnt one from touching the fire, or a broken one from running into the road or falling off whatever he's climbed up.
The rest of the time, i prefer a "three strikes and you're out" scheme. Its what my mom did with me.
strike 1 - Please don't do that again
strike 2 - I told you not to do that, don't do it again.
strike 3 - If you do that one more time i will smack you.
if i did it the fourth time , i got the flat of her hand across my legs, and quite frankly, if i was being bad enough to get to that point, i deserved it.. my son will get the same.
Its my right as a parent to discipline my child as i see fit, and i would rather be able to make the choice on wether i think my sons behaviour warrants a smack.