Maybe I should get some case fans, then.

Depending on the case, there should be alternate places to install fans. It is recommended that you get a filter for the intake fans so that all of the dust and garbage is not sucked in. Most case manufacturers will design a case and place mounting areas for fans so that you can get the best air flow over all of the circuitry. If you do not have areas to mount extra fans, than you may want to look into upgrading the one already installed on the case and processor, like previous posts stated. If that doesn't work out for you, than you may want to look at different cases.

nope not my crappy compaq only 1 92 mm fan and i added a pci slot fan and i would have to custom mount an intake fan. i wish mine had more options for fans cuz i got a heat problem too.