What's the supposed or reported speed increase of, say, a 2.66 GHz Harpertown over 2.66 GHz Woodcrest? 3.0? Etc.? I seem to recall it's been posted, but I can't find it via searching and the Harpertown thread is way too huge to search. I'm in one of those moods (after my 6-year-old desktop thermally shut down after overheating again last night) where I really want my new mac pro and I'm thinking to he|| with waiting ... but I know I'll regret it later.