I don't know for sure, but I think the drive already in your Mac is 7200 rpm, and the hard drive used in my iMac has a < 9 ms seek time, so it I assume also that drives in the pro models are as fast or faster. One thing that I can tell you for sure is that you won't be able to utilize the 133 MB speed of your drive, because you have an ATA 66 controller in your Mac. It matters little though, because the hard drive itself isn't capbable of sending data that fast.
[edit: made a goof with the less than/greater than sign]
[ 05-11-2002: Message edited by: bradoesch ]