i want to install new hard drives into my g4. i run ProTools LE and would like to eke out better performance (right now i do everything on one drive). i have a dual 500 g4. according to the System Profiler, i have two ATA controllers. on one is the original 40 gig drive. on the other is a DVD-RAM drive. i don't know the controller speed. i'm thinking of getting 2 of these drives: http://www.macmall.com/macmall/shop/detail.asp?dpno=797415&options=SUC i notice it's rated for ATA-100. i suspect my g4 ATA controller is slower (but really have no idea). will this work? i.e. using a drive rated faster? i assume it would step down to whatever my controller is. also, from what i understand, i can have 2 devices on each controller. is that right? what i'd want to do is install like this: ATA 0: new 80 gig drive (osx boot), existing 40 gig drive (os9 boot) ATA 2: new 80 gig drive (audio record drive), existing DVD-RAM drive anyone know of anything wrong w/ this approach? or these drives? or any installation gotchas? thanks!