ok so i have a 2008 mac pro with the 8800gt card in it and i was thinking about upgrading to the 4870 but it is $350, and it has that stupid display port on it. so my question is if i were to get a PC 4870 card and flashed it would it work exactly the same as the mac one? or will be some problems and glitches that i will be running into? ive never looked into flashing a card till now so im totally new to the subject. thanks in advance