i am currently looking to purchase a small form factor computer from dell and the options are Intel® GMA 4500, ATI radeon HD3470, or HD3450 for a video card. does anyone have experience with these. i've had an optiplex in the past using an integrated graphics card and it worked fine with ACDesktop3.1. just wondering if it makes a difference going with a dedicated card or integrated. it will have Intel Core™ 2 Quad Processor Q9550 with 4GB DDR2 Non-ECC SDRAM,800MHz, memory. any suggestions?