I've always been a multiple screen type (CRTs Rule!) and have continued the trend with LCDs. I have three different multiscreen setups at home, my favorite is two Graphics Quality 21" CRTs, one of which is in Portrait Mode!

At work use a Linux based, thin-client terminal, running a .txt based database with a terribly overloaded server.

It was much better back when I was a Kitchen Cabinet Designer there, I had a "real" computer back then, but who ever heard of a $5k CAD seat with the same freakin' 15" CRT as the thin-clients? MoronicManagement!