hameeham :
i found a few cheap cpu coolers on amazon. i wanted to know if theres any harm in buying used cpu coolers especially when the ones i found were like $1-$2
why are you asking this? which CPU do you have?
Generally it's a little IFFY... just because of the heat that gets absorbed by the metal on the cooler, it may not be a "good" fit for your CPU as it was for the CPU it was installed on originally. sounds alittle weird but yeah.. that's just it.
You could go on craigslist or kijiji (which is available to you) and search for a CPU cooler. There may be some NEW ones for around 5$. but of course.. supply.. is not guaranteed.