Should have went to the cooler/heatsink topic.
Though I guess this is a cheap one that I've been using on my Tbird athlon, and my dad's XP 2400+. I see it's 15 bucks on NewEgg:AeroCool X-Raider
Says it will work for P4, and cool 3.2Ghz CPUs.
Keeps my dad's XP 2400+ at 42C idle, 48C moderate load. (side is off though)