Be aware that even if a board has three outputs, you won't be able to use them all simulatiously, I don't know of any chipsets that support more than two outputs, 690G could do three WITH a seperate add in card, but not all off the chipset.
If nothing else, an IGP will struggle to smoothly run 2 or 3 monitors worth of Aero Glass!
Personally I'd just swap the inputs between one of the monitors and the HDTV, it'll be a lot cheaper and less hassle.
Oh, and check the 630i boards support HDCP too, the ones I have here do but better safe than sorry.
If nothing else, an IGP will struggle to smoothly run 2 or 3 monitors worth of Aero Glass!
Personally I'd just swap the inputs between one of the monitors and the HDTV, it'll be a lot cheaper and less hassle.
Oh, and check the 630i boards support HDCP too, the ones I have here do but better safe than sorry.