I bought a GPU on eBay yesterday for my G5 Quad. The description states that it's a 7800GTX and the price seemed pretty fair ($100US) so I bought it. The seller stated that it's a 7800GTX 512MB that was flashed for Mac and shows up as a Quadro FX 4500. I didn't find this alarming, but what I DID find alarming was upon close examination of the seller's photo, the card clearly states "Quadro" on the cooling fan on the GPU. Did I just get ripped off? I figure worst case, a Quadro FX 4500 is still worth the money and is still better than the 7800GT I'm currently using, but I'd still be mad that I was lied to. Thanks for the help everyone.