If possible, also try to take advantage of the spell vulnerability many golems have. Iron golems, for example, are slowed by electricity damage. making the orb of electricity an ideal choice. Knowledge (arcana) checks would allow your character to know about these weaknesses.
I also recommend using a spell to disable the golem. Grease is efficient at stopping golems due to golems having no skillpoints (if mindless), typically low Dex, and poor Reflex saves. Glitterdust is also a good choice as it imposes the blind condition on a failed Will save - bilndness is debilitating enough, but when the target is also mindless it can really shut it down.
