My Passive cooled 2.7ghz is at 86.4C when I do nothing, but when I put it under 100% load by playing a 1080P video (Which btw it can't do smoothly if you were wondering.) and it never went over 88.9c. Fans stay quiet and spin up very little.

My other LCS 2.7ghz setup has the newer revised cooler by Panasonic, and that guy sits at 84c without doing anything, and it never goes passed 86.5c under 100% load.

The spare 2.0 G5s I have will hover mid 40s.