I have an Intel Mac running OS 10.4.11, although I am hoping to up this to leopard soon. I've been reading on here about graphics cards and am getting a bit confused, especially about "flashing cards". I'm a bit wary of this, unless someone knows otherwise? If anyone has any ideas about what card to buy that would be great. It's primarily to do some pretty complicated After Effects. I'm currently using a NVIDIA GeForce 7300 GT on a 2.66 Dual core intel mac pro and could do with something beefier. Recomendations greatly appreciated.