I'm still looking at getting the x61s (getting the 1.

but one last thing I'm concern about is the cpu fan noise and heat dissipation. How often does it come on and how much noise and heat it makes, at no load and at about full MS office applicaiton and IE load, when plug into the AC?.
If there a software control function for the cpu fan?
I'm most concern about noise.
(my posting implies from the fact that I will be disabling unneeded junk processes in task manager that seems to habitualyl put a continuous\unpredictable big load on the cpu. That will make the cpu run under normal operating condition;Windows Vista and a antivirus program,.)
Feb 2008=Thinkpad X61s; 2x faster than X40 but not as asthetic.
Dec 2005=Thinkpad X40; perfect, but bigger than 240x.
Jan 2005=Thinkpad 240x; used; fast but dead pixels doomed it.
2003=Thinkpad 240; used,
1998=new Toshiba Tecra 740CDT. Pricey, heavy & last 5 year.