Do you have any reason other than a "feeling" that it's too high in your opinion? I have my own opinion, as well as a short position in Gold. But I have a few reasons, all technical, for my position. That way it's easier to know when/if I am wrong. The last indicator to break down and make you sell/cover is the gut feeling indicator. But by then it's usualy too late.
Kind of a funny-looking rising wedge going on here. Climbing a wall of worry...a 30-50$ short term slump would not surprise me.
Im not sure you want to short gold until it explodes like the rest of commodities. Wait until it looks like a wheat chart.