welcome to the widescreen world.
I've got a pair of 20" widescreen Dell 2005fpw displays on my PowerMac and I won't give them up for anything... except maybe two 30" displays. Once you go dual and get used to it, nothing less will do. Regardless, I'm sure you'll find that the extra screen space is really handy, and almost necessary at times. You'll wonder how you lived without it before.