Melatonin... I hate waiting for new Macs to sleep. I'm not going to be the last person out of class because I have to write 4 GB of RAM to the HD. This App sets your Mac to the old style sleep which is faster. The difference being that if you runout of power, you lose everything that isn't saved. But you always save, right?
Tested on MacBook and MacBook Pro, Mac OS X 10.5 or later