Ok so I really want to buy a new G5 with these configurations. Quad-2.5 with 8GB memory, 1TB harddrive, and the 7800 graphics card. I know that this is a beast of a computer, but because of the price my grandma (who is in charge of what I buy) doesn't really want me buying it. I would be editing videos and encoding videos with H.264. If you can give some reasons as to why this computer will be great for these things and also give reasons why this computer will be very usable for a couple of years, it would help a lot. Thanks for you time.