On eBay i can buy a single 1.25GHz MDD CPU for 22 bucks, a DUAL 1.25GHz for 29.99 or a Dual 1.33 (Xserve) CPU for 60. But i can also get the Xseve heatsink. Since I know the 1.33GHz Xserve CPU works on a MDD (As a user to this forum has installed one) I was wondering is it was possible to use the Xserve's slimline heatsink in the MDD as well.