I'm running an 8800 and have been extremely happy with it. However, it has come to my attention that many of the newest video cards wont work with my 2006 Mac Pro (EFI32). I took a look at the 4870/90 flashing thread and googled a few of the models mentioned there. To my surprise, almost all of them have either been discontinued or are available in shortening supply. (!!) I plan to keep this thing for about 2 more years. I play games on it for about 5 hours a week. My question is: should I buy a new card now before they all disappear? Also, has anyone bought a card 4870/90 *recently* from an online store and had good luck flashing it and using it under OS X? If so, what model and from where did you purchase it?