Benchmark Reviews published a comparison of several CPU Cooler products and identified the OCZ Vendetta 2. I just installed this week the Scythe Ninja Plus Rev. B and I'm totally happy with it. My system runs much more silent now than before with the Intel packaged CPU cooler.

Quote from the review: "Benchmark Reviews strives to offer the overclocker and hardware enthusiast community solid evidence reflecting the true performance of computer products through rigorous testing and evaluation. We understand that many of our readers have been involved with other community websites for years, and take our test results personally; this was made clear to us when we released our 33-Way Thermal Interface Material Comparison article.
So then after months of planning and preparation, we have worked to achieve the most complete source of test results possible, offering irrefutable test results gathered in a controlled environment. The purpose of this article is to document our findings and declare the best and top-rated CPU coolers available as of Q1 2008."
Read the full review on Benchmark Reviews.