FYI to everyone: Don't use Juicedefender. The developer has stated that it doesn't work on the Motorola Droid andCDMA phones running Android 2.1.
it seems to be working for me unless im just insane. I had 60% of battery life at 12:30 today and by now (6:00) it would have been at around 10%. Now its at 40% and same usage time ive been using it since i got it.