there should be no reason why you couldn't use some thing like these if you have a decent tower case.
http://www.newegg.com/Product/Produc...82E16835118030
or
http://www.newegg.com/Product/Produc...82E16835118223
unfortunately I am pretty sure both of those will require you to remove the motherboard to install the cooler, so a self installation will depend on your skill level