I've seen this discussed in various places but I just wanted to make sure I have this straight. If you update the EFI firmware on a 2009 Nehalem MacPro4,1...you can put in Hex 3.33's in right? The current 12-core MacPro's only go to 2.93Ghz, would it be a problem putting in the higher clocked CPU's? I'm not planning to do this anytime soon, I just got a great deal on a 2009 8-core 2.93Ghz machine, and in a year+ when those 3.33 Hex's are down in price, if I'm not interested in selling that machine or getting what's latest and greatest, that would be an awesome upgrade to have...giving me something clocked even faster per core then the current top 12-core models. Thoughts? Am I off-base here?