I've heard many bad things about leaving your PC on constantly. I've also heard very good things. I'm not sure who to believe, as it's something I've never done.

I) Some people have told me that leaving my PC on is dangerous, as it wears out the components and wastes electricity. Plus, I've been told that your plugs could overload and cause a fire which would no doubt burn me to death while I slept. Well, I'd probably wake up for the burning part, if I survived the smoke. But, that's going off-topic...

II) Others have told me that leaving my PC on is a good idea. You don't have to mess about turning the damn thing on and off, the PC goes into hibernation so that you don't have to waste electricity, the parts inside don't wear out as easily because they don't have to cool down and heat up repeatedly, and the risk of fire is almost nonexistent.

I'd like to leave my computer on constantly, but the rumours have made me think otherwise. I'm inclined to believe argument #2, but I honestly don't know what to do. Help, please?

Thanks Unne/Arche/Del/Endless/Baloki.