I'm getting around 5 minutes to get to the grey Apple screen on my Mac Pro. If I unplug my external hard drive (MyBook 1TB, formatted HSF, USB) it takes 15 seconds. From the Apple logo it takes another 20-30 seconds to fully load OS X. I really don't want to unplug my external drive every time I restart. I've done a lot of reading and it seems that external drives add to boot time. Most of what I have seen is around 30-60 seconds added to boot. My drive performance once inside OS X is great and there is nothing but data on the drive. I've repaired permissions on the boot drive and repaired disk on the external with no help. Is there anything I can do at all? Thanks in advance.