My notebook gets ridiculously hot.  I cut some holes in my desk to get some air circulating under it.  I'd like to attach a few small fans to move a little more air, and some fans from a PC case seem ideal for both size and noise reasons.

I know nearly nothing about hardware.  I think I can hook these up to a PC power supply, and plug the power supply into my wall, right?

Questions :
 - Any better ideas for small quiet fans which could easily be attached to a desk?
 - Is it safe to have a PC power supply outside of a case?
 - Where can I get a cheap power supply?  To run a few fans, I'd think any piece of junk ought to do.  Frys?
 - Will there be any way to switch this rig on/off besides just yanking out the power cord?

The safety issue is the primary one.  I have 2 little kids, and while they aren't allowed in my office, I don't want a potential electrocution hazard anywhere in the house.

thanks,
alex


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