I remember reading a review between otherwise identical drives that were PATA and SATA. There was no detectable difference in speed! Your new drive will be heaps faster than your existing drive simply because it is newer and things move on! Incidentally - to get the best price for drives you buy them in a so called OEM package. This comes with zero support! You don't even get the screws - not a problem for you folks over the pond but a difficulty here in 'metric' land! Drives usually come with a sticker on the case telling you how the jumpers go to give you 'slave' etc. They will also need formatting for the Mac. Perry -----Original Message----- From: Michelle Sorry if I didn't explain right... again, the "lingo" is unfamiliar to me. I am NOT getting the (faster, better?) SATA internal hard drive at this time. In part due to $$ and the need for the additional "card" to make it work, etc. I am getting the other one... I think it is called "PATA"... even though it may not be super fast, it will be a huge improvement over my puny, tiny 27GB hard drive that I have now, the one that came w/the Sawtooth when I bought it, used, years ago. It's really the additional hard disk space that I need right now, and at a bargain-basement price!