PCI-E x1 Video Card
 

I have a Dell Inspiron 518 and I am running dual screens with an ATI Radeon 3450 HD. I am looking to expand to triple, possible quadruple screens. The problem is that the only spots left are 2 PCI-E x1 slots. I have been looking for an okay, *_cheap_* graphics card. It doesn't need to be good...