The CoolWhip™ Air Series.

CoolWhip™ Air is our own development and trademark. 

These Air Coolers have outstanding high efficiency and a very compact design, without the excessive noise level compared to other high performance Super Coolers. Moreover it fits in almost any MB, as it is not very deep.
The most important feature however, due to its high efficiency of 0,263 degrees/watt and the fact that its made up of a special Copper Alloy, is that it is upgradeable into an active Cooler, which can maintain your CPU temperature at an impressive 18-24 degrees/Celsius at full load that is. ***
CoolWhip™ Air is designed for both Celeron, Pentium II / III and Athlon, which means, you can move it over on a new PIII, in case you should come by some money, or Intel drops the price even further.

You can start buying the basic Cooler, and try if that is sufficient for your cooling needs. Both on Pentium III and Celeron the CoolWhip™ Air Low Noise model still performs considerably better than the original Intel Cooler and all other Coolers with 2-3 50mm Fans. Even the famous ALPHA Cooler only just surpass the CoolWhip™ Turbo performance, due to it's larger size.
If it turns out, that this step is insufficient means of convincing your stubborn beast of a CPU what you expect from it, the investment is not wasted for that reason.

Now the second advantage comes handy. Previously you had to place your insufficiently performing Cooler in the ever growing collection of fiasco Coolers, and go ahead trying the next one, to see if it was any better. 

With CoolWhip™ Air you just buy an upgrade, this way you suddenly have a 59W Peltier based active Cooler, which just does the job instead.

Remember: when you use active Coolers, to operate your CPU at its maximum frequency stable at full load, and to turn off any software Coolers that you might have activated!
If you remember these things, there will be no need for excessively complicated insulation procedures of your CPU, in that condensation does not appear before the temperature falls more than app. 10 degree Celsius below ambient temperature.

Here's an example of the achievable temp. with our smallest active cooler, the CoolWhip™ Air Slot1 with a 59W TEC. (all temperatures are taken with the CPU running at 100% utilization)

...and with the more powerful CoolWhip™ Air Slot1 Turbo with an 80W TEC, it looks like this:

Note: When using better performing CPU's, you may be able to reduce the voltage applied thus getting lower temperature, and thereby even further increase the speed, as lower temperature increase the processors ability to operate at higher speeds.
We have tried Celeron 333's which ran stable at 560Mhz, and PIII 450's running stable at 675Mhz.

Want to know how it's mounted on a CPU? Take a look at the assembly instructions here