I bought the Mac Air two weeks ago (the upgraded version with 2.13GHz, and the solid-state drive). I love the machine and am using it as my primary (and only) computer. It serves my needs fine. I am mostly doing email, web surfing, and some word and excel. I have loaded parallels and run outlook on my computer. When I am home I have the MBA connected to an external 20" display. I am love with this machine, BUT, the fan noise is driving me crazy. I am not used to hearing any fan noise on my prior lap tops (which I also used as my only computer). It is often running at 6200RPM. When it does drop to below 4000RPM, I do no hear it. But I am not sure what it is I'm doing to reduce the RPM's. I would like to know if I can expect to reduce fan speed if using as a primary computer, or if it is the price one must pay for such a sleek and beautiful machine. I have read a bunch on various things to do to cool machine and lower fan noise (such as coolbook controller and thermal paste). Does this stuff really work? should I really go through all I'd rather not go through all that unless I'm really sure it's going to make a difference. Is there something wrong with my MBA? Do i need to exchnage it for a different one? Do i need to exchange for a clunkier MBP 13"? While I welcome feedback from anyone, I mostly would like to hear from others who are using the MBA as their primary machine. I have several posts that mention that Scottsdale uses his as a primary. i am new to the mac world and really appreciate any help you can give a newcomer. Thanks.