Arctic Cooling have produced the King of Non_water based CPU coolers with the awesome Freezer 7 Pro.

Evercools Awesome tower of cool, with adjustable fan carrier can be repositioned to ensure the attached fan doe snot get in the way of your existing system, or can be moved the a position where the Airflow can be maximised. Compatible With INTEL P4/LGA 775 & AMD K7/K8

Cylindrical P4 CPU cooler

Application: Up to 90 Watts - Intel Core 2 Extreme X6800 - All Intel Core 2 Duo - All Intel Pentium Dual-Core - Up to Intel Pentium 4 661 (65 nm) - Up to Intel Pentium 4 650 (90 nm, stepping R0 or later) - Up to Intel Pentium 4 551 (90 nm, stepping E0 or later) - Up to Intel Pentium 4 3.2GHz - All Intel Celeron D

The Ninja represents the holy grail of a quiet computer because it is an entirely passive heatsink, so from a noise point of view it is totally silent. It manages this through its clever arrangement of a multiple-layer fin design, combined with no less than six heatpipes. Because of this, it is one of the most efficient heatsinks we sell. The downside of this design is that is makes the heatsink fairly large, meaning that it is unsuitable for use in restricted-space applications such as HTPC cases.

Socket 775 CPU cooler for BTX & Micro BTX Form Factor (Type 1) motherboard's

Arctic Cooling's Low Profile Freezer 7 for slim cases.

Fan:   80(L) x 80(W) x 30(H) mm Cooler:   90(L) x 86(W) x 64(H) mm Fan Speed:   500 - 2000 RPM controlled by PWM signal Air Flow:   28.6 CFM / 48.5 m³/h Bearing:   Fluid Dynamic Bearing Weight:   295 g Service Life:   MTTF at 40°C: 400,000h Warranty:   6 Years