i searched, so i apologize if this post is redundant. i have an early 2008 mac pro that is undergoing it's 2nd gpu failure, and apple refuses to replace it because i forgot to renew applecare and apparently it's my responsibility that their gpu failed again. anyway, i realize i need to buy a new gpu, but i have a slight problem with paying the ~$350 apple wants for a "new" (5 year old) 8800GT. is there another cheaper gpu i can buy that will work in my computer? also, i see flashed cards selling for ~$180 on ebay, will these work? are there any other options i have? i'm a broke college student with a $1.78 bank account so i have no restrictions on the card, as long as it has DVI-D. any help would be greatly appreciated, i haven't kept up with mac pro news over the years so i am somewhat clueless as to what my best course of action is. i'm pretty sure it isn't paying apple another $350 for a gpu that will probably fail in another year or two. thanks again.