Hi, I've got a new iMac 3Ghz and I have a few sleep/wake concerns. I've found that despite sending my mac to sleep at night, when I get up I can hear it is actually on and just with the screen off, so it must have woken up in the night then not slept properly. This seems to happen quite a bit. I've also had a couple of occasions where it won't wake after sleep and I have to hold the power button down, not too big an issue, but not overly happy its already happened at least 3 times in the couple of weeks I've had it. Also, is there anyway to stop the iMac waking on USB events? I find it annoying when the mac is asleep and I take my iPod Touch out its dock to leave for work and the mac wakes. There is no need for my mac to wake when I take my iPod out surely? Furthermore I have an external hard drive on a special plug setup which means it gets turned off when my iMac sleeps, but this keeps causing my iMac to wake complaining of being dismounted improperly, I've found a solution to this (not tried it mind) yet my iMac will wake when the external hard disc is disconnected even if I have already unmounted it before sleeping. Why? Any help would be appreciated!