Hi, I've been using my 27" iMac for a few months now, and am monitoring it with iStat Menus, and I want to know if I should install and start using SMC Fan Control. My CPU idle's around 35 degrees Celsius (95 F) and peaks around 45 C (113 F). That doesn't worry me too much (btw, its the i7 processor). The GPU is an ATI Radeon HD 4850. It idle's around 50 C (122 F) and peaks at 80 C (176). I've done some research and it seems these temperatures are not severely harmful and in the norm, but I want to preserve the life of this computer for as long as possible (i'm not in the habit of spending $3500 every few years for a new computer) If I were to install and SMC Fan Control and set each fan to 50% would it be beneficial to my hardware? and also would it be bad for the actual fans? Thanks for any help. I really appreciate it!