as long as its not on a carpet, or baking in the sunlight, or right next to the furnace and you dont leave it running over night or play for 24 hours straight, you dont need to worry about ylod.
the idiots who got the ylod always leave out these finer details which definitely gave them ylod in the first place.
for example, some stupid broad i know, left her ps3 on all night every night on standby, folding, xmb, whatever you wanna call it, and finally one day it gave in. and it never crossed her mind that the excessive power usage is what did it in.
it wouldnt hurt to give your ps3 a dusting every now and then either.
Ok I just play for hours on end and was just wandering if the heat would start hurting the system
It's built to take the heat it outputs. Now, cover the vents and there's a problem.