After some advice please gentlemen 
Ive got a Geforce GT 520 graphics card in my work PC and im currently using 2 x Dell U2410 monitors (both using DVI).
I'm going to be adding a Dell U2310 and need the cheapest way to be able to use all 3 monitors at once. The current graphics card has dual dvi and a vga port so if I try to use all 3 it will only allow 2 at once.
Could I just add another cheap graphics card or would I need to get a card that will allow Eyefinity or something?
The key word here is cheap, work are clamping down on spending so got to do this the most economical way.
OS is windows 7 pro if that makes any difference.
Thanks in advance

Ive got a Geforce GT 520 graphics card in my work PC and im currently using 2 x Dell U2410 monitors (both using DVI).
I'm going to be adding a Dell U2310 and need the cheapest way to be able to use all 3 monitors at once. The current graphics card has dual dvi and a vga port so if I try to use all 3 it will only allow 2 at once.
Could I just add another cheap graphics card or would I need to get a card that will allow Eyefinity or something?
The key word here is cheap, work are clamping down on spending so got to do this the most economical way.
OS is windows 7 pro if that makes any difference.
Thanks in advance
