Count the number of fan headers on your MoBo.....it's in the manual. If the number of headers exceeds the number of fans, you are OK.
Alternately you can connect the fans to a molex connector from your PSU. Molex connectors, generally "stack", so you can plug one into the back of another.
MoBos often come w/ software and sometimes even additional sensors to control fans based upon temperature.
Otherwise, you can use something like the NZXT Sentry 2 to connect several fanshttp://www.nzxt.com/products/sentry_2/