Hello everybody, I have a question about my 21.5" iMac's heat. It's been getting really hot, even when just browsing the web. So I found iStat Menus. Here's what it came out with; (Fahrenheit, Celcius) Ambient - 86F, 30C. CPU - 122F, 50C. Mem Controller - 126F, 52C. Northbridge - 138F, 58C. Optical Drive - 120F, 48C. Power Supply 2 - 158F, 70C. Now, are any of these out of the ordinary? Oh yeah, and one last thing, is it okay to even mess with the fan speeds?