> It's 5400rpm, but I'm hoping the fluid will offset the extra heat. It's > hard to beat the extra speed AND 16MB of cache. Anyone have any advice, > cautionary tales, or other info on the subject? Also, how might it affect > battery life? I suppose my, "Where can I get the plastic piece I broke?" thread might serve as a bit of a caution. ;^) I've put together an x86 tower from scratch, replaced the transmission in my Jeep three times, and this swap was, at the very least, more difficult than I'd expected. I believe if you could get a "pro" who'd done it before for < $50, I'd go with it. That said, I don't believe you could have done any worse a job than I did and my iBook is surprisingly still working, keyboard issues aside. And having four times the hard drive space has been great. Finally space for the tunes, and good-sized partitions for a few versions of OS X (iBook is an OS X Java app test box for me). Be careful with the plastic piece holding the keyboard ribbon, *do* tape your screws to your print-out of the parts list, and use a credit-card to get the case off. Good luck. If you're this far along in your thinking, you're probably going to do it no matter how negative I get [so I won't]. Knock yourself out! Ruffin Bailey