Running an N64 / PS2 through a computer monitor?

[Dave]

Not sure where to post it so I thought I'd put it here

Am I right in thinking that, in order to run my N64 or PS2 through my computer monitor, all I need is a tuner card and then I can plug my RF output into the tuner card?

I was thinking of a USB one for space/time saving and I was wondering if the "Leadtek Winfast DTV-Dongle Digital TV USB2.0 Tuner" would do me fine.

Thanks

 

[Dave]

May just bring the small TV up to uni then

My video card at the moment is a 6600GT. Looks like it has a DVI and VGA output, and then a round one which I assume is an s-video one? No inputs though. (no VIVO capacity)