Inzone and nna2, you are both wrong. OP isn't asking about whether he wants to SLI/crossfire for games. I have a GTX 460 + GT 220 that I got for $10 running 3 monitors (2 off the 460, and 1 off the 220). Works fine, never had any issues.
Yes! This is what I wanted to hear. You are right that I am not doing it for games. I didn't need a more powerful card, but simply more monitors.