Apologies for yet another post on this topic but having seen many topics of people asking if they need to spend a bit more to buy i7, the general feeling has been no not worth it if your not going to push it much. But I am coming at it from a different angle, Lets assume money isn't really an issue. I do a fair bit of video editing in FCPx but its only 40% of what I use the machine for and an increase in productivity here is nice but not essential. rest of the machine is already maxed out. some people have eluded to temperature levels , is there any argument for not getting the i7 for this or any other reason? and exploring that further, lets say the machine runs very hot at top spec- so what? what are the consequences, you'd think its been tested to withstand those levels? thanks in advance for input.