IN SHORT: help me justify the Quad!! ;-) AUD$4600 - lot of money for a chipset that will be replaced in ~1yrs time. I will not have $$$ left over to upgrade software so will I get the full benefit using: FCP4.1, DVDSP3, PShop CS1, Nikon Capture4? I don't change machines often, I want 4+ yrs out of this purchase if possible. Quad was not on my shopping list but I see fully-loaded 2nd hand G5s with an LCD sell for prices approaching what I can buy a stock Quad for (Educ pricing). My dilemma is I just can't hold out until the next generation since I've made this old G4 last so long.