powersaved or acpid

Hi, Could someone please tell me what are the differences between powersaved and acpid (for Suse 9.1) and why should I prefer one over another? I am getting troubled with powersaved going into some kind of zombie state where I have to kill and restart it every once a so often. So, I am considering trying acpid and was wondering if I would loose/gain any functionality. thanks, -- Osho