Re: Fan speed varying....
Are we talking about a case fan or a cpu fan? Irregardless, they can easily be changed by anyone. However, if it is your CPU fan you are looking to replace then you will more than likely be looking to replace the heatsink as well and in that case I would like to suggest picking up a tube of Artic Silver thermal compound as well. It's all simple. Thermaltake and Zalman are my favorites when it comes to cooling. Just make sure you pick out the right heatsink/cpu fan for the type of mobo/cpu.
Blah. I have returned. I have let things go and I come to start fresh. :D