nope, taga asa man diay ka bro? wla ka kita daghan kaayo balay nga igang then ila pc almost whole day nag andar?
LCD is more convenient in NON-AC houses, why

because LCDs doesnt dissipate too much heat, unlike CRTs. LCD can live on top of your desk.
to clarify, LCD cant be broken by putting a stand fan beside it, relating to what i've said earlier, its okay to leave the lcd monitor alone, it doesn't even heat up.
for the CPU's, just provide it good air circulation inside, and put necessary intake and exhaust fans, then you will be happy.