Athlon 800mhz machine (Main PC used for everything) - 6 fans (3 80mm case fans, 2 on Global Win heatsink, and powersupply fan)
Celeron 2 950mhz machine (Secondary PC used for work and when the main PC is down) - 3 fans (CPU, 1 80mm case fan/intake, and powersupply fan)
Celeron 466mhz machine (Parents PC so they will leave mine alone 🙂) - 2 fans (CPU and Powersupply)
K62 350mhz laptop (when I'm on the move) - 1 fan