Yeah i highly recommended a multi-monitor setup, as it does let you see more at once in games than standard widescreen (if you configure it right). In my case i have a PLP (portrait, landscape, portrait) setup which unfortunately leaves me out of using nvidia surround or ATI eyefinity configurations which require three monitors of the exact same resolution, so I have to use a software based triplehead solution (SoftTH) that's still in beta form (but it works good in most games).
Things tend to stretch out a bit at the very edges; it was weird to me at first cuz it's like a fish-eye camera! But I found out that it does that to simulate peripheral vision and they recommend you focus at the center screen and not look directly at the sides to get the proper immersion effect
When not playing games, I have 60" of desktop screen space that makes crazy multitasking easy
In these days, it's so easy to get multi monitor setups: you can find plenty of used monitors for cheap on Ebay!!