Graphics card for a triple display setup?

[sid]

Heres what I've got now

Gtx 260 connected to a 24" hazro and 22" LG

Would like to you use another 22" LG in a triple display setup with the hazro in the middle.

Im looking for a cheap second graphics card.

What problems am I likely to face with drivers, games,etc?

sid

 

[jak731]

for my 3rd display, i used a 4870 with a 3450 and driverwise i had no issues. however i am not sure with regards to nvidia cards ,all i can say is that you are best off with an nvidia card. if you get problems in games you should be able to correct that by disabling the secondary card in windows