Pity has nothing to do with this or maybee...
A MACPRO 1.1 with two 64bits Xeon x5365 processors (8 x 3GHZ physical cores) is a very valuable and stable
machine and it's a PITY that APPLE does not make any efforts to support it. Very easy i can tell you that i am
running it with the stock 7300 Nvidia + a PC Radeon 6870 since 10.8.1 , 256GB SSDs, USB 3.0, Mirrored RAID,
16GB RAM and time machine... No way an iMac could be more efficient for me.
I NEVER had any problems with it and it's still top range regarding performance AND MORE IMPORTANTLY
for me LOW noise.
Even using Win 7 i run some high end games at a good framerate and i dont see why i would nor benefit from the latest OSX security enhancements and bug fixes because my machine enters it's 7s year ;=)
The only thing is that i need to boot from chameleon and remove some nvidia extensions to make it work
as a full 64 bits hackintosh !!! This setup took me some time, for sure, but i am not in Apple's code. An Apple engineer could have solved this in seconds...
I can just tell you that my next machines even if using OSX will not use Apple hardware anymore until they provide some real breaktrough. Now, I discovered how efficient hackintoshs are, tanks to Apple's lack of support for my 4000$ MACPRO 1.1. Ridiculous !