Will an off the shelf 8800GT work in a new mac pro?

[arcsbite]

I bought my machine about 3 weeks ago (8 core 2.8ghz), didn't think I'd need the graphics as I'm a console gamer so I stuck with the ATI 2600XT.

Over the past week I've really been getting into gaming on my mac pro (the 12gb of Ram helps!)

Can I buy an off the shelf 8800GT and upgrade the card myself or do I need a special apple voodoo version?

also, if I can buy one, anyone know which?
I have no idea and so far online I've seen -

Xpertvision 8800GT 512mb
Gigabyte NVidia 8800GT 512MB
RETAIL XFX NVIDIA 8800 GT 512mb

and about 10 others, all claiming to be the 8800GT but the prices vary

 

[Tallest Skil]

No. Well, in Windows, but not in OS X until the flashers in the other thread can give a solid tutorial.

 

[arcsbite]

No. Well, in Windows, but not in OS X until the flashers in the other thread can give a solid tutorial.

poo.