I have an iMac with a 1.83 Core Duo and I just found out that it's possible to upgrade the CPU in these computers. Now, since Lion is coming, I think it would be nice to be able to upgrade from SL, and not have to find some heinous work-around for it. The CPU upgrade in question would be to a T5750. I believe it will work, but has anyone done an upgrade? I know everyone says it's really difficult, but my iMac doesn't have a screen (Bought it that way) so it's actually really easy to disassemble. The only hard part would be getting the LogicBoard off, and I'm comfortable with attempting that. I have found a T570 for $22 on eBay, so I just want to make sure this will work. Thanks!