Hello everyone. I wanted to get a few opinions on an idea I am considering. I recently picked up a brand new iMac i3 21.5" with Applecare. I am considering giving it a nice performance boost with a 500gb Momentus XT drive. I have been considering SSD again, but the cost vs storage is a bit much for me. Not to mention I've been turned off from them greatly after having a 240gb Vertex II turn into a brick after 2 months... The Momentus XT seems like a nice value for what it offers, and with the latest firmware (SD24 I believe?), it seems to have quelled the spinning up / spinning down issues. From what I found in other iMacs I have installed this drive into, the factory Seagate sensor does not play nicely with the Momentus XT. A thermistor, like the one used on the iMac LCD sensor, will probably be used to control the fan speed. I have been inside of a few iMac's before, but this time around I am torn as this thing is a few days old.... 1. Do I pop it open carefully in an attempt to preserve its warranty and plop this hard drive in? 2. Do I keep it sealed and untouched? Looking for opinions. Like I said, I've been inside of a few different glass and aluminum iMac's, even this same model ('09), but not one so new, AND with Applecare.