To take care of your first problem, in Gnome you can go to System > Administration > Server Settings > Services and then deselect the services that take a long time to start. You can also run (as root):
Code:
# /sbin/chkconfig --remove nameofservice
As for the second problem, my only guess is to run yum update and see if that takes care of things for you. Otherwise, go hunting for some sort of setting somewhere to turn off the power manager.