Hi all, Totally new to the world of Apple mac, thought I would start out gently, I bought an Apple G5 powerpc, dual core 2 GHz running OS X 10.5.8. It has 750 GB of hard drives, 8 GB of DDR2 SDRAM. Has wireless and bluetooth capability. Came with a monitor, and genuine apple keyboard and mouse. All for £200 so well pleased. Now then I would like to upgrade the current graphics card which is the rather lowly Nvidia 6600LE with 128MB VRAM. That is now were I have found the minefield, I have a Nvidia 7800GT 256MB PCIe card, it cmae from a PC and need to get it flashed over to work on the Mac. This is a little beyond my skill level, can anyone help with this. Fingers crossed. Robbiebox.