I just ordered a refurbished Dell Optiplex 7010 running Windows 7 Home Premium with a AMD Radeon HD 7570 (1024mg) graphics card that . I want to hook 2 DVI displays to this. Will I need an active or a passive displayport to DVI adapter? Any recos for what will do the jub for the least price? Any pro tips needed for setup (e.g. will I need to change the bios or anything quirky like that)?