heres a quick comparison with the native drivers (already on 10.5.1 DVD) on my motherboard (SB600 Chipset) it took well over an hour to install, thats to an ide hardrive. On the same drive on usb it took about 30 mins. This then allowed me to use kext helper to install the sata/pata drivers and try it in my machine. It was spot on I could then patch the iso from with in osx using disk utility to include the sata/pata drivers. Then boot dvd with -f -v and do an install in no time at all about 20 mins if that but with the sata drive in the machine. The one golden rule i found about OSX is that if you ever have a problem booting 9 times out of 10 if you canb connect that drive with a usb adapter you will be able to boot it and make changes whilst inside OSX. Heres a link to what i use http://www.sharkoon.de/html/produkte/externe_gehaeuse/drive_link/index_en.html will handle sata drives and 3.5" ide and 2.5" ide drives worth every penny (I use it for alot of computer work). It has saved me alot of head ache this time and I wish the first install I did on an NForce4 board I thought to use it then would have saved a lot of messing. I think the golden rule is USB on make if pretty buullet proof but dont quote me.

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