Conclusion: I was surprised by the ability of the Thermaltake Blue Orb II CPU Cooler. Despite being somewhat louder than the Zalman heatsink, it easily trumped it in cooling ability. The slightly longer fins and perhaps larger copper core may have contributed to the success.
Pros: Simple and well documented installation, Efficient cooler, Very cool blue theme, Effective for motherboard cooling
Cons: Heavy, Can be loud and offers no fan speed control options
Summary: The Thermaltake Blue Orb II is a great high-performance cooler. Its big heat dissipating area makes it a good cooler for overclockers who don't want to spend too much money on the heatsink.
Not only does it cool well, it is also suprising quiet when delivering its cooling performance.
Pros: Great performance, Very affordable, Quiet, Supports both S939 and LGA775, Easy to install, Nice design, Blue LEDs in fan
Cons: No fan speed control, Little space near memory area on some motherboards, Does not fit ABIT AL8/AA8XE easily, Heavy