Hello All, I have a Mac Pro (1,1) 2xDual 2.66GHz. I've been eying a few Intel processors to swap out for better performance. The ones I've found to be the best deal are the Quad Core L5320's (1.86GHz) which can be purchased used for as low as $17 shipped on eBay...so around $35 for two, obviously. For such a low price, I'd think it's a no brainer to purchase these and have a 2x Quad setup. Does anyone disagree? Also, would I need to purchase any additional parts in order to make this work? Thanks for the help everyone.