Official Mac Pro - PC Gfx card questions

[g9icy]

Hi All,

I know this is the Hackintosh forum, but I'm not sure where else to ask my question.

I have a first edition, 1,1 Mac Pro, and my 8800GT died this evening. I'm currently running the original 7300 that came with it, just so I have a system up and running.

 

I'd love to get a better graphics card in here - I have my eye on this XFX 6870 (http://www.overclockers.co.uk/showproduct.php?prodid=GX-205-XF&groupid=701&catid=56&subcat=1866) and would love OSX support for this, but from what I can tell I can't get this card to be supported in my older Mac Pro, even with flashing.

 

What's the best way for me to get a better graphics card in this system, without paying the outrageous apple prices (again)?

 

Alternatively, would I be able to use my 7300 in OSX, and have windows use the 6870? I'm only interested in using it for games in windows to be honest.

 

Unfortunately it's looking like I may end up building a games PC, selling the Mac Pro and building a separate Hackintosh.

 

Thanks all,

-g9

 

PS. I'm still on Snow Leopard. I can make the jump to Lion if I absolutely have to.

PPS. Will I need extra power cables?