what do i need for multi screens

[Daveturney]

what is the cheapest way to set up an additional 2 screens on my pc.
ive got a Compaq Presario
AMD athlon(m) 64 proccesor
3200+
994mhz, 448Mb of ram.
i have three monitors ( actually have 5 )
but no idea what i need to run them side by side.
and
is ultramon any good after i have the set up???

 

[Daveturney]

i have only 1 output on my graphics card.
but at the rear of my philips screen i have a DVD-D output socket can this be used to plug in a second monitor????