I have a P4 2.4C Retail and an Abit IS7-E. With the LAPPED retail heatsink and Arctic Silver Ceramique I was at roughly 42C idle and 64C load at default voltage OCed to 3.0ghz. I just received my Zalman CNPS7000A-AlCu and a tube of Nanotherm PCM+. I am wondering if many of you out there lap your Zalmans? The finish doesn't seem too mirror-like to me, but it would be an awkward HSF to lap. Any suggestions?