2 things kinda bothering me...but really everything has been wonderful with the new mac. 1) Bootup and Shutdown seem to be a little longer than I expected. About a minute or two on each. Feels like my g4 loads and shuts down faster. 2) and i have some ram slots A2 and B2 that are running about 70-72...i talked to OWC and they assured that it is no problem as the new mac pro ram can get as hot as 85.