I just purchased Inventor and havn't downloaded it yet as it was suggested to upgrade my video card. I currently have a Radeon x1650 with a quad core 32bit 2400Mhz processor with 4gigs of ram and XP Pro. I am thinking of installing Vista Business 64bit with 8gigs of RAM. The recomendation was to go to a HP Quadro FX 1700. I am sure this would be a better card but with the cost I was wondering if I would be to bad off staying with my current card?