Currently running a 2709W Dell monitor with a stand in old ATI card. Want to try Eyefinity, the info I have been able to gather seems a bit conflicting. WOuld a 6970 be a good buy to run Eyfinity with games like BFBC2 ? Could I use my existing monitor with two more (as the 2709w does display port) or would I need to match the sizes up ? Don't want to spend more than 5 ton total.