Hello! I have a Mac Pro A1186 running snow leopard 64 bit. Its video card died, and I would like to replace it with something a bit better than what it had originally. old card: GeForce 7300 GT new card: hopefully something with 1GB ram and a snappy GPU? or just something that's not broken and is inexpensive? my question is, what are my options? How can i know which nvidia cards will work with my mac? i think i can use x16 pci-e cards, but i don't know if i should be using 2.0 or 2.1. can i just go onto newegg and buy any old PCI-E card? the one below seemed really good and costs less than $100: http://www.newegg.com/Product/Product.aspx?Item=N82E16814130395 thanks!