-ToddW
1. I know you're an experienced guy, but I gotta ask - hows the battery?
I realized on my MBP that if the battery is dead enough, it'll go to deep sleep, and even removing the battery does nothing - still asleep! Apparently there is an auxilliary battery inside, and it wont start until the main battery has at least a little juice.
2. If I were to sleep my machine with a USB device plugged in, then unplug the device while the computer is still asleep, it goes into a coma, and I have to 'trounce' the computer using hard boot to get it back.
Any of these help?