Is this topic over everyone's head here?

Currently our OpenGL application is drawing to a single monitor using 800 of the 1024 pixels. Our users desire more resolution, i.e. pixels, so we are exploring the concept of multiple monitors. What I want to know is if I get a multimon config working with Win2k with an OpenGL dual head card, can I OpenGL program 2000 pixels across these monitors? Any info you got would be appreciated.